TIGER

Journal Articles: 32 results
A New "Bottom-Up" Framework for Teaching Chemical Bonding  Tami Levy Nahum, Rachel Mamlok-Naaman, Avi Hofstein, and Leeor Kronik
This article presents a general framework for bonding that can be presented at different levels of sophistication depending on the student's level and needs. The pedagogical strategy for teaching this model is a "bottom-up" one, starting with basic principles and ending with specific properties.
Levy Nahum, Tami; Mamlok-Naaman, Rachel; Hofstein, Avi; Kronik, Leeor. J. Chem. Educ. 2008, 85, 1680.
Atomic Properties / Structure |
Covalent Bonding |
Ionic Bonding |
Lewis Structures |
Materials Science |
MO Theory |
Noncovalent Interactions
Helping Students Assess the Relative Importance of Different Intermolecular Interactions  Paul G. Jasien
A semi-quantitative model has been developed to estimate the relative effects of dispersion, dipoledipole interactions, and H-bonding on the normal boiling points for a series of simple, straight-chain organic compounds. Application of this model may be useful in addressing student misconceptions related to the additivity of intermolecular interactions.
Jasien, Paul G. J. Chem. Educ. 2008, 85, 1222.
Chemometrics |
Molecular Properties / Structure |
Noncovalent Interactions |
Physical Properties
Colorful Lather Printing  Susan A. S. Hershberger, Matt Nance, Arlyne M. Sarquis, and Lynn M. Hogue
Students explore the chemistry of polar and nonpolar substances and surfactants while marbling paper with shaving cream and food coloring.
Hershberger, Susan A. S.; Nance, Matt; Sarquis, Arlyne M.; Hogue, Lynn M. J. Chem. Educ. 2007, 84, 608A.
Applications of Chemistry |
Consumer Chemistry |
Noncovalent Interactions |
Physical Properties |
Surface Science |
Water / Water Chemistry
Dancing Crystals: A Dramatic Illustration of Intermolecular Forces  Donald W. Mundell
Crystals of naphthalene form on the surface of an acetone solution and dance about in an animated fashion illustrating surface tension, crystallization, and intermolecular forces. Additional experiments reveal the properties of the solution and previous demonstrations of surface motion are explored.
Mundell, Donald W. J. Chem. Educ. 2007, 84, 1773.
Aromatic Compounds |
Liquids |
Molecular Mechanics / Dynamics |
Molecular Properties / Structure |
Physical Properties |
Surface Science |
Noncovalent Interactions
Molecular Handshake: Recognition through Weak Noncovalent Interactions  Parvathi S. Murthy
This article traces the development of our thinking about molecular recognition through noncovalent interactions, highlights their salient features, and suggests ways for comprehensive education on this important concept.
Murthy, Parvathi S. J. Chem. Educ. 2006, 83, 1010.
Applications of Chemistry |
Biosignaling |
Membranes |
Molecular Recognition |
Noncovalent Interactions |
Chromatography |
Molecular Properties / Structure |
Polymerization |
Reactions
The Nature of Hydrogen Bonding  Emeric Schultz
Students use toy connecting blocks and Velcro to investigate weak intermolecular interactions, specifically hydrogen bonds.
Schultz, Emeric. J. Chem. Educ. 2005, 82, 400A.
Noncovalent Interactions |
Hydrogen Bonding |
Phases / Phase Transitions / Diagrams |
Water / Water Chemistry |
Covalent Bonding |
Molecular Modeling |
Molecular Properties / Structure
Chemistry of Moth Repellents  Gabriel Pinto
A real-life example consisting of the study of the different substances used as moth repellents is presented to introduce students to miscellaneous topics such as sublimation, intermolecular forces, insecticides, and the effect of moths on clothes. A set of questions about the most common moth repellents, well known to students, is used to motivate them to understand several everday phenomena through chemistry concepts.
Pinto, Gabriel. J. Chem. Educ. 2005, 82, 1321.
Noncovalent Interactions |
Applications of Chemistry |
Phases / Phase Transitions / Diagrams |
Solids |
Physical Properties |
Consumer Chemistry
Misconceptions in Sign Conventions: Flipping the Electric Dipole Moment  James W. Hovick and J. C. Poler
Reexamination of a central concept from the perspective of a new subdiscipline should not introduce misconceptions about that concept. When misconceptions introduced through chemical language can be avoided, we should change the way we speak.
Hovick, James W.; Poler, J. C. J. Chem. Educ. 2005, 82, 889.
Molecular Properties / Structure |
Noncovalent Interactions
Intermolecular Forces as a Key to Understanding the Environmental Fate of Organic Xenobiotics  Ryan E. Casey and Faith A. Pittman
We have developed an environmental chemistry module that can be used in high schools or undergraduate nonscience courses to relate chemical structures and properties to the macroscopic behavior of environmentally relevant organic chemicals like pesticides, PCBs, and solvents. The module introduces the concepts of intermolecular forces, polarity, and partitioning to explain complex phenomena such as environmental transport and biomagnification of xenobiotics (human-made chemicals).
Casey, Ryan E.; Pittman, Faith A. J. Chem. Educ. 2005, 82, 260.
Nonmajor Courses |
Hydrogen Bonding |
Noncovalent Interactions
Boiling Point versus Mass  Michael Laing
I am very pleased that Ronald Rich has written making these comments, because he is pre-eminent in this field, beginning with his early book, Periodic Correlations.
Laing, Michael. J. Chem. Educ. 2004, 81, 642.
Atomic Properties / Structure |
Molecular Properties / Structure |
Noncovalent Interactions |
Liquids |
Phases / Phase Transitions / Diagrams
Boiling Point versus Mass   Ronald L. Rich
Laing gave a useful examination of the boiling points of small molecules versus molecular mass. However, a molecule escaping from a liquid is not closely analogous to a satellite breaking free from the earths gravitational field with the requirement of a minimum escape velocity, such that the required kinetic energy is proportional to the mass of the satellite at that escape velocity.
Rich, Ronald L. J. Chem. Educ. 2004, 81, 642.
Molecular Properties / Structure |
Atomic Properties / Structure |
Liquids |
Noncovalent Interactions |
Phases / Phase Transitions / Diagrams
Three-Dimensional Model for Water: Magnets as Dipoles  Samuel H. Yalkowsky and Jennifer L. H. Johnson
Reply to comments on original article.
Yalkowsky, Samuel H.; Johnson, Jennifer L. H. J. Chem. Educ. 2004, 81, 34.
Aqueous Solution Chemistry |
Noncovalent Interactions |
Hydrogen Bonding |
Lipids |
Liquids |
Molecular Modeling |
Phases / Phase Transitions / Diagrams |
Solutions / Solvents |
Water / Water Chemistry
Three-Dimensional Model for Water: Magnets as Chemical Bonds  Roy W. Clark
Concerns over students confusing electrical and magnetic fields.
Clark, Roy W. J. Chem. Educ. 2004, 81, 34.
Aqueous Solution Chemistry |
Noncovalent Interactions |
Hydrogen Bonding |
Lipids |
Liquids |
Molecular Modeling |
Phases / Phase Transitions / Diagrams |
Solutions / Solvents |
Water / Water Chemistry
Purple or Colorless—Which Way Up? An Entertaining Solubility Demonstration  Trevor M. Kitson
Discrepant demonstration involving immiscible mixture of water colored with potassium permanganate and hexane.
Kitson, Trevor M. J. Chem. Educ. 2003, 80, 892.
Aqueous Solution Chemistry |
Solutions / Solvents |
UV-Vis Spectroscopy |
Noncovalent Interactions |
Molecular Properties / Structure |
Physical Properties
Laboratory Sequence in Computational Methods for Introductory Chemistry  Jason A. Cody and Dawn C. Wiser
Description of a four-week laboratory sequence that exposes students to instrumentation (FT-NMR, GC) and computational chemistry.
Cody, Jason A.; Wiser, Dawn C. J. Chem. Educ. 2003, 80, 793.
Chromatography |
Computational Chemistry |
Noncovalent Interactions |
MO Theory |
Molecular Modeling |
Molecular Mechanics / Dynamics |
Molecular Properties / Structure |
NMR Spectroscopy |
Gas Chromatography
Boiling Points of the Family of Small Molecules CHwFxClyBrz: How Are They Related to Molecular Mass?  Michael Laing
Investigating the role of molecular mass in determining boiling points of small molecules.
Laing, Michael. J. Chem. Educ. 2001, 78, 1544.
Atomic Properties / Structure |
Noncovalent Interactions |
Liquids |
Molecular Properties / Structure |
Physical Properties
The Solubility of Ionic Solids and Molecular Liquids  C. Baer and Sheila M. Adamus
The solubilities of three ionic salts (NaCl, PbCl2, and KAl(SO4)2.12H2O) in water are measured at four temperatures. The concept of recrystallization is introduced as students cool a high-temperature solution and observe crystal formation. Spreadsheet calculations are performed with the group data, which are then graphed, and students observe the wide variance in solubility behavior for the three salts.
Baer, Carl; Adamus, Sheila M. J. Chem. Educ. 1999, 76, 1540.
Noncovalent Interactions |
Laboratory Computing / Interfacing |
Liquids |
Molecular Properties / Structure |
Solutions / Solvents
Solving the Mystery of Fading Fingerprints with London Dispersion Forces  Doris R. Kimbrough and Ronald DeLorenzo
The fingerprints of the perpetrator are often not the only ones of importance in the collection of evidence. The fingerprints of the victim can be extremely important as well, and obtaining them when the victim is a child can be a tricky and frustrating endeavor.
Kimbrough, Doris R.; DeLorenzo, Ronald. J. Chem. Educ. 1998, 75, 1300.
Noncovalent Interactions |
Forensic Chemistry |
Esters |
Applications of Chemistry
Intermolecular Forces in Introductory Chemistry Studied by Gas Chromatography, Computer Models, and Viscometry  Jonathan C. Wedvik, Charity McManaman, Janet S. Anderson, and Mary K. Carroll
Students performing gas chromatographic (GC) analyses of mixtures of n-alkanes and samples that simulate crime scene evidence discover that liquid mixtures can be separated rapidly into their components based upon intermolecular forces. Each group of students is given a liquid sample that simulates one collected at an arson scene, and the group is required to determine the identity of the accelerant. Students also examine computer models to better visualize how molecular structure affects intermolecular forces: London forces, dipole-dipole interactions, and hydrogen bonding.
Wedvik, Jonathan C.; McManaman, Charity; Anderson, Janet S.; Carroll, Mary K. J. Chem. Educ. 1998, 75, 885.
Theoretical Chemistry |
Chromatography |
Noncovalent Interactions |
Gas Chromatography |
Molecular Modeling |
Forensic Chemistry |
Alkanes / Cycloalkanes |
Hydrogen Bonding |
Molecular Properties / Structure
Why Do Alcoholic Beverages Have "Legs"?  Todd P. Silverstein
After a sip of wine, "legs" of liquid typically run up and down the inside of the glass for many minutes. This phenomenon stems from the dipole-dipole intermolecular forces that are so important in understanding the physical behavior of aqueous solutions.
Silverstein, Todd P. J. Chem. Educ. 1998, 75, 723.
Noncovalent Interactions |
Aqueous Solution Chemistry |
Learning Theories |
Alcohols |
Hydrogen Bonding
A Simple Demonstration of How Intermolecular Forces Make DNA Helical  Michael F. Bruist
The usage of stacked identical boxes can be used to demonstrate the helical shape of DNA by the effect of intermolecular forces.
Bruist, Michael F. J. Chem. Educ. 1998, 75, 53.
Molecular Properties / Structure |
Hydrogen Bonding |
Noncovalent Interactions |
Molecular Modeling
Teaching Chemistry with Electron Density Models  Gwendolyn P. Shusterman and Alan J. Shusterman
This article describes a powerful new method for teaching students about electronic structure and its relevance to chemical phenomena. This method, developed and used for several years in general chemistry and organic chemistry courses, relies on computer-generated three-dimensional models of electron density distributions.
Shusterman, Gwendolyn P.; Shusterman, Alan J. J. Chem. Educ. 1997, 74, 771.
Learning Theories |
Computational Chemistry |
Molecular Modeling |
Quantum Chemistry |
Atomic Properties / Structure |
Covalent Bonding |
Ionic Bonding |
Noncovalent Interactions
Can London Dispersion Forces Be Stronger than Dipole-Dipole Forces, Including Hydrogen Bonds?  Thomas T. Earles
Using French fries as an example in which London dispersion forces are stronger than dipole-dipole forces.
Earles, Thomas T. J. Chem. Educ. 1995, 72, 727.
Noncovalent Interactions |
Hydrogen Bonding
Principles of electronegativity Part I. General nature  Sanderson, R. T.
The concept of electronegativity has been modified, expanded, and debated. The concept can be used to help students gain valuable insights and understanding of the cause-and-effect relationship between atomic structure and compound properties. This is the first in a series of articles that explores the important concept of electronegativity.
Sanderson, R. T. J. Chem. Educ. 1988, 65, 112.
Electrochemistry |
Periodicity / Periodic Table |
Noncovalent Interactions |
Atomic Properties / Structure |
Physical Properties |
Enrichment / Review Materials
The Rayleigh fountain   Skinner, James F.; Moir, James F.
The demonstration presented in this note provides and excellent example of the difference between polar and nonpolar liquids.
Skinner, James F.; Moir, James F. J. Chem. Educ. 1988, 65, 69.
Noncovalent Interactions
Which will evaporate first?  Stenmark, Allan
The evaporation rate of various short-chain alcohols and diethyl ether are compared.
Stenmark, Allan J. Chem. Educ. 1987, 64, 351.
Physical Properties |
Noncovalent Interactions |
Hydrogen Bonding |
Molecular Properties / Structure |
Alcohols |
Ethers
Methane pistol  Skinner, James F.
This simple demonstration leaves a lasting impression of the importance of intermolecular forces and hydrogen bonding.
Skinner, James F. J. Chem. Educ. 1987, 64, 171.
Noncovalent Interactions |
Hydrogen Bonding |
Molecular Properties / Structure
Coulombic models in chemical bonding. II. Dipole moments of binary hydrides  Sacks, Lawrence J.
A discussion of Coulumbic models and their aid in understanding chemical bonding.
Sacks, Lawrence J. J. Chem. Educ. 1986, 63, 373.
Electrochemistry |
Molecular Properties / Structure |
Covalent Bonding |
Noncovalent Interactions
A classical electrostatic view of chemical forces  Jaffe, H. H.
This paper reviews the different types of forces involved in the formation of chemical compounds, solids and liquids.
Jaffe, H. H. J. Chem. Educ. 1963, 40, 649.
Covalent Bonding |
Ionic Bonding |
Metallic Bonding |
Noncovalent Interactions
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
Some aspects of hydrogen bonding in inorganic chemistry  Gorman, Mel
The purpose of this review is to present some of the research which is illustrative of the methods used and the results obtained with a variety of inorganic compounds in which hydrogen bonding is one of the structural features.
Gorman, Mel J. Chem. Educ. 1956, 33, 468.
Hydrogen Bonding |
Noncovalent Interactions
Ammonia and "ammonium hydroxide"  Davis, John B.
One of several reactions that needs reevaluation in the light of the modern theory of valence is the reaction between ammonia and water and the fiction of the ammonium hydroxide molecule.
Davis, John B. J. Chem. Educ. 1953, 30, 511.
Amines / Ammonium Compounds |
Aqueous Solution Chemistry |
Reactions |
Hydrogen Bonding |
Noncovalent Interactions