22.10. Rearrangements to Electron-Deficient Centers
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Blue Bottle, Red and Blue Bottle Color changes are caused by reactions of oxygen in the air with chemicals in a solution. The colors fade over time, but can be regenerated by shaking the flask containing the solution.
Kinetics |
Mechanisms of Reactions |
Oxidation / Reduction
Induction by Iron(II) of the Oxidation of Iodide by Dichromate Acidic aqueous solutions containing dichromate and iodide ions are mixed with no reaction. The addition of a solution of iron(II) ion induces the rapid formation of brown triiodide ion.
Catalysis |
Kinetics |
Mechanisms of Reactions |
Oxidation / Reduction
Exploding Soap Bubbles: Hydrogen + Oxygen A series of three videos shows that as the ratio of oxygen to hydrogen in soap bubbles increases, the explosions that occur when the bubbles are ignited get louder. (The fact that with an excess of oxygen the explosions would become softer again is not shown.) Each video is repeated with no voice-over so that only the sounds of the explosions are heard. Five still images are provided to show the stoichiometry on the molecular scale. The videos are intended to be shown in order beginning with Hydrogen Alone and ending with hydrogen plus more oxygen.
the following mechanism has been proposed at high temperatures: (1) NO2 + CO O-N-O-C-O (slow) (2) O-N-O-C-O NO + CO2 (fast) Check the box for each species that is an intermediate in this mechanism.
Chemical Aspects of General Anesthesia: Part II. Current PracticesRobert Brunsvold and Daryl L. Ostercamp With the basic elements of balanced general anesthesia in place by the 1950s, the focus turned to developing safer and more effective agents and to improving procedures. During the last half-century a new generation of intravenous induction anesthetics, inhalational anesthetics, and muscle relaxants has emerged. Brunsvold, Robert; Ostercamp, Daryl L. J. Chem. Educ.2006, 83, 1826.
Bioorganic Chemistry |
Chirality / Optical Activity |
Drugs / Pharmaceuticals |
Medicinal Chemistry |
Synthesis
The Importance of Non-Bonds in Coordination CompoundsMichael Laing Significance of noncovalent interactions in determining the structure and behavior of coordination compounds. Laing, Michael. J. Chem. Educ.2001, 78, 1400.
ChemPaths 104 W Feb 23John W. Moore Today in Chem 104:
* Lecture: Mechanisms of Reactions
* Reading:
Kotz, Ch. 15, Sec. 5-6
Moore, Ch. 13, Sec. 6-76
* Homework #5 due by 11:55 pm F Feb 25
* Excel Assignment due in first discussion section this week
* Quiz 4 in second discussion section this week
Mechanisms of Reactions
ChemPaths 104 F Feb 25John W. Moore Today in Chem 104:
* Lecture: Problem-Solving Session
* No assigned reading for today.
* Homework #5 due by 11:55 pm Today!
* Biomolecules Tutorial Enzymes (including Enzymes Quiz)
is due Wed. Mar. 2, at 11:55 pm.
Mechanisms of Reactions
Reaction MechanismsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
NO + CO2 
