Landolt-Brnstein Group II
: Molecules and Radicals
Volume 13 

Radical Reaction Rates in Liquids 

Subvolume C Radicals Centered on N, S, P and Other Heteroatoms. Nitroxyls 
Introductory material 
General introduction (H. FISCHER)	1

5	
Nitrogen-centered radicals (K.U. INGOLD) 5

5.0	
Introduction 5

5.1	
Aminyl radicals, RR'N 6

5.1.1	
Bimolecular self-reactions and radical-dimer equilibria 6

5.1.2	
Reactions with a different radical 14

5.1.3	
Unimolecular reactions 15

5.1.4	
Intermolecular hydrogen atom abstractions from carbon 20

5.1.5	
Intermolecular hydrogen atom abstractions from oxygen 25

5.1.6	
Intermolecular hydrogen atom abstractions from nitrogen 28

5.1.7	
Intermolecular hydrogen atom abstractions from sulfur 28

5.1.8	
Intermolecular reactions other than hydrogen atom abstraction 29

5.2	
Aminium radicals, RR'R"N+ 36

5.2.1	
Bimolecular self-reactions and radical-dimer equilibria 36

5.2.2	
Reactions with a different radical 45

5.2.3	
Unimolecular reactions 45

5.2.4	
Intermolecular hydrogen atom abstraction from carbon 52

5.2.5	
Intermolecular reactions other than hydrogen atom abstraction 74

5.3	
Carboxamidyl radicals, R'CONR 79

5.4	
Sulfinamidyl radicals, RR'SON, and sulfonamidyl radicals, RR'SO2N 89

5.5	
Imidyl radicals, RCOR'CON 93

5.6	
Iminyl radicals, RR'C=N 98

5.7	
Alkoxyaminyl radicals, RR'ON 102

5.8	
Thioaminyl radicals, RR'SN 104

5.9	
Dithioaminyl radicals, RSR'SN 108

5.10	
Hydrazyl radicals, R'R'NNR 110

5.10.1	
Bimolecular self-reactions and radical-dimer equilibria 110

5.10.2	
Reactions with a different radical 120

5.10.3	
Unimolecular reactions 121

5.10.4	
Intermolecular hydrogen atom abstractions by DPPH from hydrocarbons 123

5.10.5	
Intermolecular hydrogen atom abstractions by DPPH from amines 123

5.10.6	
Intermolecular hydrogen atom abstractions by DPPH from phenols 126

5.10.7	
Intermolecular hydrogen atom abstractions by DPPH from thiols 142

5.10.8	
Intermolecular hydrogen atom abstractions by DPPH from ethers 145

5.10.9	
Intermolecular hydrogen atom abstractions by DPPH from acids, alcohols, anhydrides 146

and other compounds

5.10.10	
DPPH-solvent association equilibria 147

5.11 
Hydrazyl radical cations, (R'R"NNR2)+, and related species 147

5.12 
Verdazyl and related radicals 151

5.13 
Diazirinyl radicals 154

5.14 
Diazenyl radicals, RN=N 155

5.15 
Azidyl radical, N3 156

5.16 
Triazenyl radicals, R2N3 and diazaallyl radicals, (RN)2CR'; bimolecular self-reactions 157

-
5.17 
Benzolnitrile radical anions, ArCM ; unimolecular reactions 158

6 
Aminoxyl and related radicals (K.U. INGOLD) 166

6.0 
Introduction 166

6.1 
Aminoxyl radicals, RR'NO 167

6.1.1 
Bimolecular self-reactions and radical-dimer equilibria 167

6.1.2 
Reactions with a different radical 181

6.1.3 
Unimolecular reactions 201

6.1.4 
Intermolecular hydrogen atom abstractions from carbon 216

6.1.5 
Intermolecular hydrogen atom abstractions from oxygen 222

6.1.6 
Intermolecular hydrogen atom abstractions from nitrogen; cyclic aminoxyls 228

6.1.7 
Intermolecular reactions with molecules in excited states 231

6.1.8 
Other intermolecular reactions 249

6.2 
Iminoxyl radicals, RR'C=NO 257

6.3 
Aminothiyl radicals, RRNS, iminothiyl radicals, RR'C=NS, and related species 265

7 
Radicals centered on sulfur, phosphorus and other heteroatoms (B.P. ROBERTS) 271

7.0 
Introduction 271

7.1 
Boron-centered radicals 272

7.2 
Silicon-centered radicals 272

7.3 
Phosphorus-centered radicals 287

7.3.1 
Absolute rate constants 287

7.3.2 
Relative rate constants, fragmentation or rearrangement 304

7.4 
Sulfur-centered radicals 308

7.5 
Germanium-centered radicals 321

7.6 
Arsenic-centered radicals 322

7.7 
Tin-centered radicals 323

7.8 
Mercury-centered radicals 337



Index of substances (See Vol. 13E) 
