fm JWBS043-Rogers October 8, 2010 21:3 Printer Name: Yet to Come
xx CONTENTS21 Photochemistry and the Theory of Chemical Reactions 344
21.1 Einstein’s Law, 344
21.2 Quantum Yields, 345
Table 21.1 Some Experimental Quantum Yields., 345
Figure 21.1 Mechanism for Fluorescent and
Phosphorescent Light Emission., 346
21.2.1 Lipid Peroxidation, 346
21.2.2 Ozone Depletion, 347
21.3 Bond Dissociation Energies (BDE), 348
21.4 Lasers, 348
21.5 Isodesmic Reactions, 349
21.6 The Eyring Theory of Reaction Rates, 349
21.7 The Potential Energy Surface, 350
Figure 21.2 Eyring Potential Energy Plot for the
ReactionH+H–H→H–H+H., 350
Figure 21.3 Activation of the Symmetrical Reaction
H+H–H→H–H+H., 351
Figure 21.4 The Enthalpy of Activation of an Exothermic
Reaction., 351
21.7.1 Optical Inversion, 352
Figure 21.5 An Optically Active Species., 352
Figure 21.6 Inversion of Optical Activity., 352
21.8 The Steady-State Pseudo-Equilibrium, 353
21.9 Entropies of Activation, 354
21.10 The Structure of the Activated Complex, 355
Problems and Examples, 355
Example 21.1, 355
Example 21.2, 356
Problems 21.1–21.8, 357–359References 361
Answers to Selected Odd-Numbered Problems 365
Index 369