TIGER

Journal Articles: 97 results
The Electrochemical Synthesis of Transition-Metal Acetylacetonates  S. R. Long, S. R. Browning, and J. J. Lagowski
The electrochemical synthesis of transition-metal acetylacetonates can assist in the transformation of an entry-level laboratory course into a research-like environment where all members of a class are working on the same problem, but each student has a personal responsibility for the synthesis and characterization of a specific compound.
Long, S. R.; Browning, S. R.; Lagowski, J. J. J. Chem. Educ. 2008, 85, 1429.
Coordination Compounds |
Electrochemistry |
IR Spectroscopy |
Physical Properties |
Synthesis |
Transition Elements |
UV-Vis Spectroscopy
Data Pooling in a Chemical Kinetics Experiment: The Aquation of a Series of Cobalt(III) Complexes  Richard S. Herrick, Kenneth V. Mills, and Lisa P. Nestor
Describes an experiment that introduces students to integrated rate laws, the search for a mechanism that is consistent with chemical and kinetic data, and the concept of activation barriers and their measurement in a curriculum whose pedagogical philosophy makes the laboratory the center of learning for undergraduates in their first two years of instruction.
Herrick, Richard S.; Mills, Kenneth V.; Nestor, Lisa P. J. Chem. Educ. 2008, 85, 1120.
Coordination Compounds |
Kinetics |
Mechanisms of Reactions |
Rate Law |
UV-Vis Spectroscopy
Prussian Blue: Artists' Pigment and Chemists' Sponge  Mike Ware
The variable composition of Prussian blue tantalized chemists until investigations by X-ray crystallography in the late 20th century explained its many properties and uses.
Ware, Mike. J. Chem. Educ. 2008, 85, 612.
Applications of Chemistry |
Coordination Compounds |
Dyes / Pigments |
Electrochemistry |
Oxidation / Reduction |
Photochemistry |
Toxicology
The Chemical Adventures of Sherlock Holmes: The Serpentine Remains  Ken Shaw
This story is a chemical mystery, set in the context of Sherlock Holmes and Dr. Watson, that emphasizes qualitative analysis, descriptive chemistry, and forensics.
Shaw, Ken. J. Chem. Educ. 2008, 85, 507.
Acids / Bases |
Applications of Chemistry |
Coordination Compounds |
Calorimetry / Thermochemistry |
Forensic Chemistry |
Qualitative Analysis
A Simple Method for Drawing Chiral Mononuclear Octahedral Metal Complexes  Aminou Mohamadou and Arnaud Haudrechy
This article presents a simple and progressive method to draw all of the octahedral complexes of coordination units with at least two different monodentate ligands and show their chiral properties.
Mohamadou, Aminou; Haudrechy, Arnaud. J. Chem. Educ. 2008, 85, 436.
Asymmetric Synthesis |
Chirality / Optical Activity |
Coordination Compounds |
Diastereomers |
Enantiomers |
Molecular Properties / Structure |
Stereochemistry |
Transition Elements
Can a Non-Chiral Object Be Made of Two Identical Chiral Moieties?  Jean François LeMaréchal
Uses the cut of an apple to show that the association of identical chiral moieties can form a non-chiral object.
LeMaréchal, Jean François. J. Chem. Educ. 2008, 85, 433.
Chirality / Optical Activity |
Coordination Compounds |
Enantiomers |
Group Theory / Symmetry |
Stereochemistry |
Transition Elements
Preparation and Characterization of Solid Co(II) Pyrimidinolates in a Multifaceted Undergraduate Laboratory Experiment  Norberto Masciocchi, Simona Galli, Angelo Sironi, Gabriella Dal Monte, Elisa Barea, Juan Manuel Salas, and Jorge A. R. Navarro
Presents an integrated set of experiments involving the [Co(4-pyrimidinolate)2(H2O)n] species, including synthesis; analytical characterization by conventional titration and colorimetric methods; thermal, spectroscopic and structural characterization; and advanced analytical techniques (XRF, XRD).
Masciocchi, Norberto; Galli, Simona; Sironi, Angelo; Dal Monte, Gabriella; Barea, Elisa; Salas, Juan Manuel; Navarro, Jorge A. R. J. Chem. Educ. 2008, 85, 422.
Coordination Compounds |
Solid State Chemistry |
Synthesis |
Thermal Analysis |
X-ray Crystallography
A New Colorimetric Assay of Tabletop Sweeteners Using a Modified Biuret Reagent  Christopher J. Fenk, Nathan Kaufman, and Donald G. Gerbig, Jr.
Presents a new, fast and effective colorimetric analysis of aspartame that incorporates a less caustic biuret reagent and visible spectroscopic analysis for selective detection in aqueous solutions using readily available instrumentation.
Fenk, Christopher J.; Kaufman, Nathan; Gerbig, Donald G., Jr. J. Chem. Educ. 2007, 84, 1676.
Consumer Chemistry |
Coordination Compounds |
Crystal Field / Ligand Field Theory |
Food Science |
Qualitative Analysis |
Quantitative Analysis |
UV-Vis Spectroscopy |
Amino Acids
Redox Titration of Ferricyanide to Ferrocyanide with Ascorbic Acid: Illustrating the Nernst Equation and Beer–Lambert Law  Tina H. Huang, Gail Salter, Sarah L. Kahn, and Yvonne M. Gindt
In this simple experiment, which illustrates the Nernst equation and Beer¬ĚLambert law, students monitor the reduction of ferricyanide ion to ferrocyanide electrochemically and spectrophoto-metrically upon titration with ascorbic acid. The Nernst equation is used to calculate the standard reduction potential of the redox couple at pH 7 and the number of electrons transferred.
Huang, Tina H.; Salter, Gail; Kahn, Sarah L.; Gindt, Yvonne M. J. Chem. Educ. 2007, 84, 1461.
Coordination Compounds |
Electrochemistry |
Potentiometry |
Spectroscopy |
UV-Vis Spectroscopy
A Colorful Look at the Chelate Effect  Donald C. Bowman
The relative stabilities of several copper(II) and nickel(II) complexes are visually compared by noting color changes due to ligand exchange reactions. The demonstration illustrates the chelate effect¬Ěthe increased stability of bi- and tetradentate ligands.
Bowman, Donald C. J. Chem. Educ. 2006, 83, 1158.
Coordination Compounds |
Transition Elements
The Synthesis of Copper(II) Carboxylates Revisited  Kevin Kushner, Robert E. Spangler, Ralph A. Salazar, Jr., and J. J. Lagowski
Describes an electrochemical synthesis of copper(II) carboxylates for use in the general chemistry laboratory course for chemistry majors.
Kushner, Kevin; Spangler, Robert E.; Salazar, Ralph A., Jr.; Lagowski, J. J. J. Chem. Educ. 2006, 83, 1042.
Carboxylic Acids |
Coordination Compounds |
Electrochemistry |
Metals |
Solutions / Solvents |
Transition Elements |
Undergraduate Research |
Synthesis
Valence, Oxidation Number, and Formal Charge: Three Related but Fundamentally Different Concepts  Gerard Parkin
The purpose of this article is to clarify the terms valence, oxidation number, coordination number, formal charge, and number of bonds and illustrate how the valence of an atom in a molecule provides a much more meaningful criterion for establishing the chemical reasonableness of a molecule than does the oxidation number.
Parkin, Gerard. J. Chem. Educ. 2006, 83, 791.
Coordination Compounds |
Covalent Bonding |
Lewis Structures |
Oxidation State |
Nomenclature / Units / Symbols
The Discovery and Development of Cisplatin  Rebecca A. Alderden, Matthew D. Hall, and Trevor W. Hambley
Cisplatin is currently one of the most widely used anticancer drugs in the world. The unlikely events surrounding the discovery of its anticancer activity, subsequent introduction into the clinic, and the continuing research into platinum compounds is the subject of this review.
Alderden, Rebecca A.; Hall, Matthew D.; Hambley, Trevor W. J. Chem. Educ. 2006, 83, 728.
Bioinorganic Chemistry |
Coordination Compounds |
Drugs / Pharmaceuticals |
Medicinal Chemistry |
Metallic Bonding |
Oxidation State |
Synthesis
Simple and Inexpensive Computer Interface to a Durrum Stopped-Flow Apparatus Tested Using the Iron(III)–Thiocyanate Reaction  Craig M. Hoag
Describes a computer interface between a Durrum model 110 stopped-flow apparatus and a LabPro voltage probe using LoggerPro software from Vernier. This probe and software can be used to measure and record data from most instruments normally connected to an oscilloscope or chart recorder.
Hoag, Craig M. J. Chem. Educ. 2005, 82, 1823.
Instrumental Methods |
Kinetics |
Laboratory Computing / Interfacing |
Coordination Compounds |
UV-Vis Spectroscopy
A Passive Sampler for Determination of Nitrogen Dioxide in Ambient Air  Dan Xiao, Lianzhi Lin, Hongyan Yuan, Martin M. F. Choi, and Winghong Chan
This article describes the use of a passive sampler for detecting and collecting nitrogen dioxide, NO2, in ambient air. This device is based on microporous PTFE membranes that allow air samples to diffuse through and subsequently react with an absorbing reagent solution. The absorbance value of this reagent is proportional to the NO2 concentration in ambient air. It has been successfully applied to determine the NO2 concentrations in various sampling sites.
Xiao, Dan; Lin, Lianzhi; Yuan, Hongyan; Choi, Martin M. F.; Chan, Winghong. J. Chem. Educ. 2005, 82, 1231.
Calibration |
Membranes |
UV-Vis Spectroscopy |
Amines / Ammonium Compounds |
Coordination Compounds |
Gases |
Laboratory Equipment / Apparatus |
Nonmajor Courses |
Quantitative Analysis
Valence, Covalence, Hypervalence, Oxidation State, and Coordination Number  Derek W. Smith
It is argued that the terms valence, covalence, hypervalence, oxidation state, and coordination number are often confused and misused in the literature. It is recommended that use of the term valence, and its associated terminology, should be restricted to simple molecular main group substances and to some oxoacids and derivatives, but avoided in both main group and transition element coordination chemistry.
Smith, Derek W. J. Chem. Educ. 2005, 82, 1202.
Coordination Compounds |
Covalent Bonding |
Main-Group Elements |
Oxidation State
Metal Complexes of Trifluoropentanedione. An Experiment for the General Chemistry Laboratory  Robert C. Sadoski, David Shipp, and Bill Durham
Investigation of the transition-metal complexes produced by the reactions of Cr(III), Mn(II), Fe(III), Co(II), Ni(II), and Cu(II) with 1,1,1-trifluoro-2,4-pentanedione; mass spectroscopy is used to determine the stoichiometry of the reaction products.
Sadoski, Robert C.; Shipp, David; Durham, Bill. J. Chem. Educ. 2001, 78, 665.
Coordination Compounds |
Synthesis |
Mass Spectrometry |
Transition Elements |
Stoichiometry
The Household Chemistry of Cleaning Pennies  Laurence D. Rosenhein
Although it is well known that solutions of vinegar and table salt are effective in removing tarnish from pennies, chemical explanations of this behavior are not included in sources of this "household chemistry" and erroneous explanations have crept into popular literature on this subject; this article provides some relevant empirical information on the system.
Rosenhein, Laurence D. J. Chem. Educ. 2001, 78, 513.
Consumer Chemistry |
Coordination Compounds |
Oxidation / Reduction
Cubic Unit Cell Construction Kit  Bruce Mattson
This article provides plans for the construction of a student-interactive cubic unit cell model kit. Plans allow for the kit to be constructed on any scale. The kit is used in classroom activities or by students working alone or in small groups to construct the entire family of cubic lattices.
Mattson, Bruce. J. Chem. Educ. 2000, 77, 622.
Coordination Compounds |
Crystals / Crystallography |
Descriptive Chemistry |
Solid State Chemistry |
Molecular Modeling
The Nernst Equation: Determination of Equilibrium Constants for Complex Ions of Silver  Martin L. Thompson and Laura J. Kateley
The experiment requires a voltmeter capable of recording millivolts (or a good pH meter) and inexpensive chemicals. It allows students to check the validity of the Nernst equation and compare their experimental Kform values to reported ones.
Thompson, Martin L.; Kateley, Laura J. J. Chem. Educ. 1999, 76, 95.
Equilibrium |
Coordination Compounds |
Electrochemistry |
Oxidation / Reduction
Acid-Base Chemistry of the Aluminum Ion in Aqueous Solution  Edward Koubek
A demonstration of the amphoteric behavior of aluminum is given based on an older report that was given many years ago.
Koubek, Edward. J. Chem. Educ. 1998, 75, 60.
Coordination Compounds |
Equilibrium |
Acids / Bases |
Aqueous Solution Chemistry
Thermochromic Solids  Jeffrey G. Hughes
The preparation of thermochromic compounds and various ways to use them.
Hughes, Jeffrey G. J. Chem. Educ. 1998, 75, 57.
Coordination Compounds |
Phases / Phase Transitions / Diagrams
Complexometric Titrations: Competition of Complexing Agents in the Determination of Water Hardness with EDTA  M. Cecilia Yappert and Donald B. DuPre
The competition of complexing agents for the same metal ion and the formation of colored metal-ion complexes is demonstrated with the use of an overhead projector. This demonstration can be used to emphasize both the relevance of the relative values of formation constants in the complexation of metal cations and the applicability of complexometric titrations in quantitative chemical analysis.
Yappert, M. Cecilia; DuPre, Donald B. J. Chem. Educ. 1997, 74, 1422.
Equilibrium |
Coordination Compounds |
Qualitative Analysis |
Quantitative Analysis |
Titration / Volumetric Analysis |
Aqueous Solution Chemistry |
Water / Water Chemistry |
Metals
The Inorganic Illustrator: A 3-D Graphical Supplement for Inorganic and Bioinorganic Chemistry Courses Distributed on CD-ROM  Scott L. Childs and Karl S. Hagen
As part of this project we are accumulating a database of representative crystal structures of main group molecules, coordination complexes, organometallic compounds, small metalloproteins, bioinorganic model complexes, clusters, and solid state materials in Chem3D Plus format to be viewed with Chem3D Viewer, which is free software from Cambridge Scientific Computing.
Childs, Scott L.; Hagen, Karl S. J. Chem. Educ. 1996, 73, 917.
Molecular Modeling |
Enrichment / Review Materials |
Bioinorganic Chemistry |
Coordination Compounds |
Organometallics |
Main-Group Elements |
Solid State Chemistry
Infrared Spectroscopy: A Versatile Tool in Practical Chemistry Courses   Volker Wiskam, Wolfgang Fichtner, Volker Kramb, Alexander Nintschew, and Jens Stefan Schneider
Procedure for preparing samples of basic inorganic compounds and analyzing them through IR spectroscopy in freshman chemistry.
Wiscamp, Volker; Fichtner, Wolfgang; Kramb, Volker; Nintschew, Alexander; Schneider, Jens Stefan. J. Chem. Educ. 1995, 72, 952.
IR Spectroscopy |
Synthesis |
Coordination Compounds
A Handy Reagent for Testing the Reducing Power of Sugars  Sandell, Arvid
Using the reduction of copper(II) as a semi-quantitative test for reducing sugars.
Sandell, Arvid J. Chem. Educ. 1994, 71, 346.
Carbohydrates |
Oxidation / Reduction |
Coordination Compounds
Bonding theory/ The Werner-Jorgensen controversy  Whisnant, David M.
A review of a two-part simulation introducing students to the history of the development of bond theories.
Whisnant, David M. J. Chem. Educ. 1993, 70, 902.
Coordination Compounds
"Qual": From a different viewpoint  Laing, Michael
Author contends that traditional teaching techniques in inorganic chemistry need to be reconsidered.
Laing, Michael J. Chem. Educ. 1993, 70, 666.
Periodicity / Periodic Table |
Metals |
Qualitative Analysis |
Coordination Compounds
The CoCl2 Thermosiphon   Brown, Justina L.; Battino, Rubin
A novel way to present the temperature dependence of the equilibrium shift using cobalt complexes.
Brown, Justina L.; Battino, Rubin J. Chem. Educ. 1993, 70, 153.
Equilibrium |
Coordination Compounds
Synthesis, oxidation and UV/IR spectroscopy illustrated: An integrated freshman lab session   Zoller, Uri; Lubezky, Aviva; Danot, Miriam
This paper describes a specially designed, and successfully implemented lab-session for the first-year college general chemistry course.
Zoller, Uri; Lubezky, Aviva; Danot, Miriam J. Chem. Educ. 1991, 68, A274.
IR Spectroscopy |
UV-Vis Spectroscopy |
Coordination Compounds |
Metals
Thermochromic behavior of cobalt(II) halides in nonaqueous solvents and on filter paper   Bare, William D.; Mellon, E. K.
This paper presents two phenomenon of cobalt chemistry that are aesthetically pleasing, relatively safe, and suitable for class experimentation and demonstration.
Bare, William D.; Mellon, E. K. J. Chem. Educ. 1991, 68, 779.
Descriptive Chemistry |
Crystal Field / Ligand Field Theory |
Coordination Compounds
A titrimetric determination using laser-beam scattering for endpoint determination   Brooks, David W.; Lyons, Edward J.
Data from one of four repeated trials of a lecture experiment that determines the stability constant of a silver amine complex.
Brooks, David W.; Lyons, Edward J. J. Chem. Educ. 1991, 68, 155.
Coordination Compounds |
Colloids |
Lasers |
Titration / Volumetric Analysis
Reactivity of nickel  Birk, James P.; Ronan, Martha; Bennett, Imogene; Kinney, Cheri
A series of experiments which lead to observations about the reactivity of nickel. [Debut]
Birk, James P.; Ronan, Martha; Bennett, Imogene; Kinney, Cheri J. Chem. Educ. 1991, 68, 48.
Reactions |
Quantitative Analysis |
Coordination Compounds |
Oxidation State |
Electrochemistry
Fast and slow reactions of chromium compounds  Knox, Kerro
The inertness of ligand substitution by chromium(III) ions is compared with other reactions that do proceed at reasonably fast rates, and an outcome is obtained in which two solutions of identical compositions contain different chromium species of different colors.
Knox, Kerro J. Chem. Educ. 1990, 67, 700.
Coordination Compounds |
Transition Elements
Coordination complexes of cobalt: Inorganic synthesis in the general chemistry laboratory  Williams, Gregory M.; Olmstead, John, III; Breksa, Andrew P., III
An experiment involving synthesis and spectral studies of a series of [Co(NH3)5L] complexes that introduces general chemistry students to inorganic synthesis and allows them to conduct a systematic study on the effect of different ligands on absorption spectra.
Williams, Gregory M.; Olmstead, John, III; Breksa, Andrew P., III J. Chem. Educ. 1989, 66, 1043.
Coordination Compounds |
Synthesis |
Spectroscopy
Chemical principles for the introductory laboratory, CHM 384 (Johnson, James F.)  Wegner, Carol
A comprehensive review of the title program which overviews basic techniques and concepts presented in introductory laboratory courses. Topics include: titration, equilibrium, Ksp, solubility, Beer's law, coordination complexes and first-order rates of reaction.
Wegner, Carol J. Chem. Educ. 1988, 65, A47.
Acids / Bases |
Titration / Volumetric Analysis |
UV-Vis Spectroscopy |
Equilibrium |
Solutions / Solvents |
Coordination Compounds |
Kinetics
Preparation of a simple thermochromic solid  Van Oort, Michiel J. M.
An easy, dramatic, and effective laboratory introduction to solid-solid phase transitions, thermochromism, and color changes associated with changes in ligand coordination suitable for undergraduate students in physical and general chemistry.
Van Oort, Michiel J. M. J. Chem. Educ. 1988, 65, 84.
Phases / Phase Transitions / Diagrams |
Crystals / Crystallography |
Coordination Compounds |
Metals |
Thermodynamics
Coordination Chemistry (Basolo, F.; Johnson, R. C.)  Kauffman, George B.
Written for persons with a limited background in chemistry.
Kauffman, George B. J. Chem. Educ. 1987, 64, A191.
Coordination Compounds
Werner and Jorgensen: Presenting history with a computer  Whisnant, David M.
85. A computer simulation designed to illustrate the process of science - how theories develop, how change occurs, and how scientists behave.
Whisnant, David M. J. Chem. Educ. 1987, 64, 688.
Molecular Properties / Structure |
Coordination Compounds
A tale of two elements  Nelson, P. G.
Readers are invited to identify elements A and B from the descriptions in this article.
Nelson, P. G. J. Chem. Educ. 1986, 63, 1021.
Oxidation State |
Organometallics |
Coordination Compounds |
Descriptive Chemistry |
Magnetic Properties
Further observations on the cobalt(II)-chloride equilibrium: Effect of changing the chloride ion concentration  Martins, Luis J. A.; da Costa, J. Barbosa
In this article, the authors supplement previous experiments on equilibrium by confirming the effect of changes in chloride ion concentration.
Martins, Luis J. A.; da Costa, J. Barbosa J. Chem. Educ. 1986, 63, 989.
Equilibrium |
Coordination Compounds |
Acids / Bases
Preparation and spectrophotometric analysis of hexaaminenickel(II) chloride: A general chemistry experiment  Wieder, Grace M.
The preparation and ammonia analysis of an amminenickel (II) chloride suggested by a previous author has been modified and extended to include spectrophotometric analysis for nickel. This introduces freshman to a quantitative instrumental technique based on Beer's law.
Wieder, Grace M. J. Chem. Educ. 1986, 63, 988.
Spectroscopy |
Coordination Compounds
Spectrophotometric titration of a mixture of calcium and magnesium  Fulton, Robert; Ross, Michael; Schroeder, Karl
Because the conditions chosen for the titration are not well suited to visual endpoints, students become aware of the unique advantage of spectrophotometric titrations.
Fulton, Robert; Ross, Michael; Schroeder, Karl J. Chem. Educ. 1986, 63, 721.
UV-Vis Spectroscopy |
Coordination Compounds |
Titration / Volumetric Analysis
A quick test for the highly colored ions of the aluminum-nickel group  Grenda, Stanley C.
This paper intends to present a technique that eliminates errors in the analysis of the nickel subgroup cations.
Grenda, Stanley C. J. Chem. Educ. 1986, 63, 720.
Qualitative Analysis |
Coordination Compounds
Density gradient columns for chemical displays  Guenther, William B.
An important advantage of these demonstrations of complex chemistry is that students can observe them over a period of time as they grasp concepts of solution equilibria.
Guenther, William B. J. Chem. Educ. 1986, 63, 148.
Acids / Bases |
pH |
Coordination Compounds |
Metals
Windowsill kinetics: A spectrophotometric study of the photochromism of mercury dithizonate  Petersen, Richard L.; Harris, Gaylon L.
Mercury dithizonate undergoes a color change from orange to an intense royal blue upon irradiation with visible light.
Petersen, Richard L.; Harris, Gaylon L. J. Chem. Educ. 1985, 62, 802.
Photochemistry |
Spectroscopy |
Kinetics |
Coordination Compounds |
Raman Spectroscopy
The colorful complexes of copper(II)  Earl, Boyd L.
Producing the color changes associated with Cu(H2O)4 2+, CuCl4 2-, and Cu(NH3)4 2+.
Earl, Boyd L. J. Chem. Educ. 1985, 62, 798.
Coordination Compounds |
Crystal Field / Ligand Field Theory
EDTA-type chelating agents in everyday consumer products: Some food, cleaning, and photographic applications  Hart, J. Roger
Chelating agents found in mayonnaise and salad dressings; canned legumes; plant foods; detergents and soaps; floor wax removers; hard surface, carpet, bathtub and tile cleaners; and photography.
Hart, J. Roger J. Chem. Educ. 1985, 62, 75.
Consumer Chemistry |
Coordination Compounds |
Applications of Chemistry
Cobalt complexes and Le Châtelier  Grant, A. Ward, Jr.
The cobalt complexes are an excellent demonstration to illustrate Le Châtelier's Principle to beginning chemistry students.
Grant, A. Ward, Jr. J. Chem. Educ. 1984, 61, 466.
Coordination Compounds |
Equilibrium
Chemical storage of solar energy using an old color change demonstration  Spears, L. Gene, Jr.; Spears, Larry G.
The results of a student research project that could be used as an experiment to illustrate the potential of hydrates salts for solar energy storage.
Spears, L. Gene, Jr.; Spears, Larry G. J. Chem. Educ. 1984, 61, 252.
Photochemistry |
Coordination Compounds |
Solutions / Solvents |
Aqueous Solution Chemistry |
Calorimetry / Thermochemistry
Models to depict hybridization of atomic orbitals  Stubblefield, C. T.
Six models of hybridization: linear, trigonal, tetrahedral, planar, trigonal bipyrimidal, and octahedral.
Stubblefield, C. T. J. Chem. Educ. 1984, 61, 158.
Atomic Properties / Structure |
Molecular Modeling |
Covalent Bonding |
Coordination Compounds
Metal-ligand complexes-a calculation challenge  Ramette, R. W.
The purpose of this paper is to illustrate one of the most important experimental methods for studying complex equilibria and to present synthetic data as a challenge to the many sophisticated calculation procedure that enjoy various degrees of loyalty around the world.
Ramette, R. W. J. Chem. Educ. 1983, 60, 946.
Equilibrium |
Metals |
Electrochemistry |
Oxidation / Reduction |
Coordination Compounds
Inorganic thermochromism: A lecture demonstration of a solid state phase transition  Willett, Roger D.
A description of an activity using thermochromic material is an easy way to demonstrate solid state phase transition.
Willett, Roger D. J. Chem. Educ. 1983, 60, 355.
Phases / Phase Transitions / Diagrams |
Solid State Chemistry |
Coordination Compounds
Detection of carbon monoxide in tobacco smoke using molybdosilicate  Feinstein, H. I.
This carbon monoxide detector was first developed during WWII: it is simple, rapid, and extremely sensitive.
Feinstein, H. I. J. Chem. Educ. 1981, 58, 633.
Oxidation / Reduction |
Applications of Chemistry |
Metals |
Coordination Compounds
Some aspects of coordination chemistry   Mickey, Charles D.
The genesis of modern coordination theory; the Wernerian system; experimental support for Werner's coordination theory; amplification of Werner's theory; the nature of complex ions; formation and nomenclature for complexes, complexes in the environment; chelates in medicine; complexing in natural systems; and industrial application of complexes.
Mickey, Charles D. J. Chem. Educ. 1981, 58, 257.
Coordination Compounds |
Medicinal Chemistry |
Metals
An applied exam in coordination chemistry  Pantaleo, Daniel C.
Students draw from a pool of stock chemicals and answer questions based on its formula and observed properties.
Pantaleo, Daniel C. J. Chem. Educ. 1980, 57, 669.
Coordination Compounds |
Nomenclature / Units / Symbols
Cobalt complexes in equilibrium  Ophardt, Charles E.
This equilibrium illustrates the application of LeChatelier's principle to concentration effects.
Ophardt, Charles E. J. Chem. Educ. 1980, 57, 453.
Equilibrium |
Coordination Compounds |
Aqueous Solution Chemistry |
Solutions / Solvents
Magnetic and spectral behavior of Co(py)2X2 complexes. A teaching experiment  Webb, D. L.; Meek, T. L.
The pedagogical merit of this experiment is two-fold: a considerable portion of the syllabus is covered and there is a requirement for students to collaborate and discuss.
Webb, D. L.; Meek, T. L. J. Chem. Educ. 1978, 55, 408.
Spectroscopy |
Magnetic Properties |
Coordination Compounds |
Organometallics
Synthesis and reactions of a cobalt complex. A project for freshman laboratory  Alexander, John J.; Dorsey, John G.
This lab offers first-year students a rare opportunity for interesting discussions with brighter students, for extending the work involved and for conveying some of the excitement of a developing research problem.
Alexander, John J.; Dorsey, John G. J. Chem. Educ. 1978, 55, 207.
Coordination Compounds |
Diastereomers |
Spectroscopy
Synthesis and properties of an optically active complex: A polarimeter experiment for general chemistry  Hunt, Harold R., Jr.
Synthesizing and determining the optical rotation of d-Co(phen)3(ClO4)3.2H2O.
Hunt, Harold R., Jr. J. Chem. Educ. 1977, 54, 710.
Chirality / Optical Activity |
Molecular Properties / Structure |
Stereochemistry |
Synthesis |
Coordination Compounds
Questions [and] Answers  Campbell, J. A.
303-308. Six practical, environmental chemistry application questions and their answers. Q303 submitted by Jerry Ray Dias.
Campbell, J. A. J. Chem. Educ. 1977, 54, 369.
Enrichment / Review Materials |
Metals |
Toxicology |
Coordination Compounds |
Membranes |
Aqueous Solution Chemistry |
Atomic Properties / Structure
The reactions of ferroin complexes. A color-to-colorless freshman kinetic experiment  Edwards, John O.; Edwards, Kathleen; Palma, Jorge
A group of related reactions that can be easily followed with a colorimeter which show that the mechanism by which a reaction takes place may not be at all obvious from the stoichiometry.
Edwards, John O.; Edwards, Kathleen; Palma, Jorge J. Chem. Educ. 1975, 52, 408.
Kinetic-Molecular Theory |
Coordination Compounds |
Crystal Field / Ligand Field Theory |
Stoichiometry |
Mechanisms of Reactions
A comparison of base strengths using visual and EMF observations  Campbell, J. A.
A series of sequentially added dilute aqueous solutions whose changes provide evidence for different degrees of dissociation of a series and complexes.
Campbell, J. A. J. Chem. Educ. 1975, 52, 185.
Acids / Bases |
Aqueous Solution Chemistry |
Coordination Compounds |
Precipitation / Solubility
Thiocyanato chromium(III) complexes. Separation by paper electrophoresis and estimate of stability constants  Larsen, Erik; Eriksen, J.
Differently charged species of thiocyanato chromium(III) complexes are separated by paper electrophoresis.
Larsen, Erik; Eriksen, J. J. Chem. Educ. 1975, 52, 122.
Separation Science |
Coordination Compounds |
Electrophoresis
Synthesis and spectral study of copper(II) complexes  Potts, Richard A.
The authors propose a series of experiments for general chemistry that are related to one and another.
Potts, Richard A. J. Chem. Educ. 1974, 51, 539.
Coordination Compounds |
Synthesis |
Spectroscopy
Preparation and properties of potassium trioxalatoferrate(III) trihydrate  Aravamudan, G.; Gopalakrishnan, J.; Udupa, M. R.
The authors report on an exercise involving potassium trioxalatoferrate(III) trihydrate as an illustrative exercise in general chemistry laboratory courses.
Aravamudan, G.; Gopalakrishnan, J.; Udupa, M. R. J. Chem. Educ. 1974, 51, 129.
Coordination Compounds |
Synthesis |
Physical Properties
The preparation and analysis of some metal-pyridine complexes. A general chemistry experiment  Kauffman, George B.; Albers, Richard A.; Harlan, Fred L.
A general chemistry experiment in which students synthesize and then characterize some metal-pyridine complexes.
Kauffman, George B.; Albers, Richard A.; Harlan, Fred L. J. Chem. Educ. 1973, 50, 70.
Coordination Compounds |
Synthesis
The reaction of CN- ions with Ni(EDTA)2- ions  Littlejohn, D. G.; Fanning, J. C.
A green Ni(NO3)2 solution changes to blue upon adding EDTA; this changes to a deep violet when a solution of KCN and KOH is added.
Littlejohn, D. G.; Fanning, J. C. J. Chem. Educ. 1972, 49, A267.
Coordination Compounds |
Aqueous Solution Chemistry
The effect of ligands on hydrolysis constants of transition metal ions  Morrow, Jack I.
This procedure examines the effect that ligands in the inner coordination sphere have upon the chemical behavior of transition metal ions.
Morrow, Jack I. J. Chem. Educ. 1972, 49, 748.
Coordination Compounds |
Transition Elements |
Metals |
Crystal Field / Ligand Field Theory |
Aqueous Solution Chemistry
Coordination complexes and equilibrium  Shombert, Donald J.
The results of this demonstration are explained in terms of equilibrium, Le Chatelier-Braun's principle, and coordination complex formation.
Shombert, Donald J. J. Chem. Educ. 1970, 47, A784.
Coordination Compounds |
Equilibrium |
Aqueous Solution Chemistry
Demonstration notes: Spontaneous combustion  Johnson, Joseph E.
Modifications or additions to previously published demonstration.
Johnson, Joseph E. J. Chem. Educ. 1970, 47, A439.
Oxidation / Reduction |
Reactions |
Gases |
Transport Properties |
Coordination Compounds
Model to illustrate bonding and symmetry of transition metal complexes  Betteridge, D.
Describes a physical model used to demonstrate the combination of atomic orbitals of the transition metal ion with those on surrounding ligands to give molecular orbitals.
Betteridge, D. J. Chem. Educ. 1970, 47, 824.
Transition Elements |
Metals |
Coordination Compounds |
Molecular Modeling |
Atomic Properties / Structure |
Group Theory / Symmetry
Preparative and ion exchange studies on the cobalt(III)-iminodiacetate system  Weyh, John A.
This experiment involves the preparation of two of the three possible geometrical isomers of the 1:2 iminodiacetato complexes of cobalt(II).
Weyh, John A. J. Chem. Educ. 1970, 47, 715.
Coordination Compounds |
Diastereomers
Hydrogen sulfide under any other name still smells. A poisonous story  Brasted, Robert C.
The chemistry of hydrogen sulfide affords an excellent opportunity to integrate descriptive inorganic and coordination chemistry with biochemistry.
Brasted, Robert C. J. Chem. Educ. 1970, 47, 574.
Descriptive Chemistry |
Molecular Properties / Structure |
Coordination Compounds |
Enzymes |
Proteins / Peptides
Isomerism in transition metal complexes: An experiment for freshman chemistry laboratory  Foust, Richard D., Jr.; Ford, Peter C.
In this experiment students synthesize two isomers, cis- and trans-dichlorobis(ethylenediamine)-cobalt(III) chloride.
Foust, Richard D., Jr.; Ford, Peter C. J. Chem. Educ. 1970, 47, 165.
Molecular Properties / Structure |
Transition Elements |
Metals |
Coordination Compounds |
Diastereomers |
Synthesis
Chemical queries. Especially for introductory chemistry teachers  Young, J. A.; Malik, J. G.; House, J. E., Jr.; Campbell, J. A.
(1) When is the rule valid that the rate of reaction approximately doubles with a ten-degree temperature rise? - answer by House. (2) On the colors of transition metal complexes. (3) On an electrolysis experiment in which an acid solution is used to minimize the hydrolysis of Cu 2+. - answer by Campbell.
Young, J. A.; Malik, J. G.; House, J. E., Jr.; Campbell, J. A. J. Chem. Educ. 1969, 46, 674.
Rate Law |
Kinetics |
Transition Elements |
Coordination Compounds |
Atomic Properties / Structure |
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Acids / Bases
Synthesis and reactions of cobalt complexes: A laboratory experiment  Olson, Gary L.
The experiment described here studies a series of reactions employed in the synthesis of a number of coordination compounds of cobalt(II) and cobalt(III).
Olson, Gary L. J. Chem. Educ. 1969, 46, 508.
Coordination Compounds |
Synthesis
A research approach in the introductory laboratory  Wilson, Lauren R.
Presents an alternative to artificial "experiments" in which known results are merely confirmed in which students synthesize a series of chloro-ammine and chloro-ethylene-diaminecobalt(III) compounds.
Wilson, Lauren R. J. Chem. Educ. 1969, 46, 447.
Undergraduate Research |
Synthesis |
Coordination Compounds |
Qualitative Analysis
Complexes in rust spot removal  Saurer, J. M.
KHF2 is used to remove rust stains from cloth.
Saurer, J. M. J. Chem. Educ. 1968, 45, A833.
Coordination Compounds |
Consumer Chemistry
The relative stability of cadmium and cobalt chloride complexes  Butler, S. B.
The presence of complex ions in cadmium chloride solutions is shown by comparison with a sodium chloride solution of equal chlorine content, using a complex cobalt ion as an indicator of the relative chloride ion concentration.
Butler, S. B. J. Chem. Educ. 1968, 45, A691.
Coordination Compounds |
Aqueous Solution Chemistry
Effect of complexing agents on oxidation potentials  Helsen, Jef
A short note on a simple experiment to demonstrate the effect of complexing agents on the oxidation-reduction properties of redox couples such as Fe3+/Fe2+.
Helsen, Jef J. Chem. Educ. 1968, 45, 518.
Coordination Compounds |
Oxidation / Reduction |
Aqueous Solution Chemistry |
Electrochemistry
Atomic structure. Radioactivity (continued)   Alyea, Hubert N.
Formation of the complex Cu(NH3)4++ as an example of coordinate covalent bonding and hydrogen bonding as evidenced by viscosity.
Alyea, Hubert N. J. Chem. Educ. 1967, 44, A599.
Coordination Compounds |
Covalent Bonding |
Hydrogen Bonding |
Liquids
Notes on experiments for introductory college chemistry  
A brief set of notes regarding the complex salt [Co(NH3)5Cl]Cl2, the Guoy balance, Avogadro's number, and the stoichiometry of a mixture.
J. Chem. Educ. 1965, 42, 495.
Coordination Compounds |
Magnetic Properties |
Stoichiometry |
Solutions / Solvents
Composition of metal ammine ions  Slabaugh, W. H.
The number of ligands associated with the central metallic ion is measured titrimetrically, with photometric and potentiometric endpoints, for Cu(NH3)4 2+ and Ag(NH3)2 +.
Slabaugh, W. H. J. Chem. Educ. 1965, 42, 470.
Coordination Compounds
Experimental approach to stoichiometry. In first-year chemistry at Northwestern  King, L. Carroll; Cooper, Milton
Presents five experiments in which students are given a minimal set of directions and a simply stated objective.
King, L. Carroll; Cooper, Milton J. Chem. Educ. 1965, 42, 464.
Stoichiometry |
Coordination Compounds |
Undergraduate Research |
Aqueous Solution Chemistry |
Solutions / Solvents |
Precipitation / Solubility |
Titration / Volumetric Analysis
The oxygen coordinations of lithium  Donnay, Gabrielle; Gryder, J. W.
The prevalent notion that lithium has only one coordination number with oxygen calls for revision - both tetrahedral and octahedral coordinations do occur.
Donnay, Gabrielle; Gryder, J. W. J. Chem. Educ. 1965, 42, 223.
Coordination Compounds
Simplified d orbital models assist in teaching coordination concepts  Nicholson, Douglas G.
Presents a three-dimensional model, containing representatives of all lobes of the five d orbitals, prepared for each of the tetrahedral, square planar, and octahedral coordination configurations.
Nicholson, Douglas G. J. Chem. Educ. 1965, 42, 148.
Atomic Properties / Structure |
Coordination Compounds
Concerning equilibrium, free energy changes, Le Châtelier's principle II  Eberhardt, William H.
This demonstration involves a reversible, temperature-based transformation from blue tetrahedrally coordinated Co2+ to pink sixfold coordinated Co2+.
Eberhardt, William H. J. Chem. Educ. 1964, 41, A591.
Equilibrium |
Thermodynamics |
Aqueous Solution Chemistry |
Coordination Compounds
I - Ligand field theory  Cotton, F. Albert
Examines the causes and consequences of inner orbital splittings, stereochemical consequences, and the visible spectra of transition metal compounds. [Debut]
Cotton, F. Albert J. Chem. Educ. 1964, 41, 466.
Crystal Field / Ligand Field Theory |
Coordination Compounds |
Transition Elements
Demonstration of some properties of Prussian blue  Kohn, M.
Provides suggestions for student research based on an earlier article published in the Journal.
Kohn, M. J. Chem. Educ. 1963, 40, A135.
Undergraduate Research |
Dyes / Pigments |
Coordination Compounds |
Acids / Bases
Preparation and analysis of a complex compound  Sebera, Donald K.
A cobalt/ammonia complex is prepared and analyzed in a freshman chemistry laboratory.
Sebera, Donald K. J. Chem. Educ. 1963, 40, 476.
Synthesis |
Coordination Compounds |
Transition Elements
Coordination chemistry in general chemistry texts  Clark, Roy W.; Selbin, Joel
Presents the results of a survey of 36 college general chemistry texts with respect to the degree to which they examine the chemistry of coordination compounds.
Clark, Roy W.; Selbin, Joel J. Chem. Educ. 1961, 38, 466.
Coordination Compounds
The equilibria of complex formation  Banks, James E.
Despite the present recognition of the stepwise formation of complexes in solution, many textbooks continue to treat it as a one-step process, presumably to preserve a reasonable simplicity in the mathematical computation of concentrations.
Banks, James E. J. Chem. Educ. 1961, 38, 391.
Equilibrium |
Coordination Compounds |
Aqueous Solution Chemistry
Models of metal coordination compounds  Myers, R. Thomas
Suggestions for modifying traditional molecular model kits to illustrate common types of coordination compounds.
Myers, R. Thomas J. Chem. Educ. 1958, 35, 152.
Metals |
Coordination Compounds |
Molecular Modeling
Inorganic coordination compounds in general chemistry  Kirschner, Stanley
Argues that coordination chemistry is an important part of general chemistry and identifies several places in the general chemistry course where the topic of coordination compounds can be conveniently presented.
Kirschner, Stanley J. Chem. Educ. 1958, 35, 139.
Coordination Compounds
Lone pair electrons  Fowles, Gerald W. A.
The lone pair electrons, whether in simple or hybrid orbitals, have profound effects on the properties of the molecule; these effects may be discussed as bond angles, dipole moments, bond energies and lengths, and coordination and hydrogen bonding.
Fowles, Gerald W. A. J. Chem. Educ. 1957, 34, 187.
Atomic Properties / Structure |
Covalent Bonding |
Coordination Compounds |
Noncovalent Interactions |
Hydrogen Bonding |
Molecular Properties / Structure
A temperature-equilibrium demonstration  Brown, John A.
This demonstration makes use of the colored cobaltous complexes in a mixed solvent to show the dependence of some equilibria on temperature.
Brown, John A. J. Chem. Educ. 1951, 28, 640.
Equilibrium |
Calorimetry / Thermochemistry |
Thermodynamics |
Coordination Compounds