Table of Contents
xv
References ...................................................................................................... 275
Addendum Chapter 21 .................................................................................... 276
Chapter 22 Free-Radical and Spin-Paired Diradical Reactions ....... 283
22-1 Types of Free Radical Reactions ........................................................... 283
22-2 R + O 3  RO + O 2 , with R = H, Cl, and NO......................................... 284
22-3 Reactions of O 2 with Fe(II) Porphyrin Complexes ................................. 287
22-4 “1,3 Dipolar” (or “Zwitterionic Diradical Hybrid”) Cycloaddition
Reactions ............................................................................................. 290
22-5 Thermal Decomposition of o-Nitrophenylazide ..................................... 294
References ...................................................................................................... 295
Addendum Chapter 22 .................................................................................... 296
Chapter 23 Some Comparisons of Types of Wave-Funcions for
4-Electron 3-Centre Bonding Units ................................ 299
23-1 Complete Valence-Bond Resonance ..................................................... 299
23-2 Simple Molecular Orbital ..................................................................... 302
23-3 Standard Valence-Bond Resonance ...................................................... 303
23-4 Linnett Non-Paired Spatial Orbital ........................................................ 304
23-5 “Increased-Valence”............................................................................. 305
23-6 “Improved” Ψ(IVBO) and Ψ(best) ........................................................ 305
23-7 Conclusions ......................................................................................... 308
References ...................................................................................................... 310
Addendum Chapter 23 .................................................................................... 310
Chapter 24 A Note on Pauling “3-Electron Bonds” and
Covalent-Ionic Resonance .............................................. 313
References ...................................................................................................... 316
Chapter 25 Some Additional Topics.................................................. 317
1.
Recoupled-Pair Bonding....................................................................... 317
2.
for 3-Electron 3-Centre
3.
The Electronic Structure of C 6 H 6 .......................................................... 319
4.
p and n Type Semiconductors and High T c Superconductors .................. 320
5.
Dimerization and Polymerization of O 2 ................................................. 321
References ...................................................................................................... 322
Some Additional References for
..................... 323
Appendix ............................................................................................ 325
Atomic Orbital Overlap and Resonance Between Standard and
“Long-Bond” Lewis Structures ....................................................................... 325
References ...................................................................................................... 326
“Increased-Valence” Structures
“Increased-Valence” Structures
Bonding Units
. 318
........................................................................................