Landolt-Brnstein Group II
: Molecules and Radicals
Volume 17 

Magnetic Properties of Free Radicals 

Subvolume C Conjugated Carbon-Centered and Nitrogen Radicals 
Title Page, Preface 
General introduction (H. FISCHER) 1

4 
Carbon radicals with conjugated p-systems (A. BERNDT) 5

4.1 
Introduction 5

4.2 
Radicals with 3 conjugated p-electrons 8

4.2.1 
Allyl and deuterated allyl radicals 8

4.2.2 
Alkyl-substituted allyl radicals 10

4.2.3 
Allyl radicals containing Cl 12

4.2.4 
Allyl radicals containing oxygen 13

4.2.5 
Allyl radicals containing sulfur 18

4.2.6 
Allyl radicals containing nitrogen or phosphorus 20

4.2.7 
Allyl radicals containing silicon 23

4.2.8 
Allyl radicals containing Ag, Al, Au, Cu 24

4.2.9 
Phenyl- and aryl-substituted allyl radicals 25

4.2.10 
Aza-allyl and oxaallyl radicals 29

4.2.11 
Semicyclic allyl radicals 30

4.2.12 
Cyclopropenyl radicals 32

4.2.13 
Isocyclic allyl radicals 33

4.2.14 
Heterocyclic allyl radicals 36

4.2.15 
Bicyclic allyl radicals 48

4.2.16 
Allenyl (propargyl) radicals 54

4.3 
Radicals with 5 conjugated p-electrons 58

4.3.1 
Pentadienyl radicals 58

4.3.2 
Pentenynyl radicals 64

4.3.3 
Pentadiynyl radicals 65

4.3.4 
Semicyclic pentadienyl radicals 66

4.3.5 
Cyclic pentadienyl radicals 70

4.3.6 
Cyclopentadienyl radicals 70

4.3.7 
Cyclohexadienyl radicals 88

4.3.8 
Pyryl radicals 109

4.3.9 
Thiapyryl radicals 118

4.3.10 
Pyridinyl radicals 127

4.3.11 
Phosphorinyl radicals 158

4.3.12 
Sila-cyclohexadienyl radicals 164

4.4 
Radicals with 7 conjugated p-electrons 165

4.4.1 
Heptatrienyl radicals 165

4.4.2 
Trivinylmethyl radicals 165

4.4.3 
Heptadienynyl radicals 165

4.4.4 
Cycloheptatrienyl radicals 166

4.4.5 
Cyclopentadienidemethyl radicals 170

4.4.6 
Benzyl radicals 171

4.4.7 
Benzyl-type radicals containing heterocyclic 6 p-electron ring systems 229

4.4.8 
Bicyclic benzyl-type radicals 234

4.5 
Radicals with 9 conjugated p-electrons 242

4.6 
Radicals with 11 conjugated p-electrons 251

4.7 
Radicals with 13 conjugated p-electrons 251

4.7.1 
Phenalenyl (perinaphthenyl) radicals 251

4.7.2 
Diphenylmethyl radicals 260

4.7.3 
Fluorenyl radicals 298

4.7.4 
Dibenzocyclohexadienyl and related radicals 317

4.7.5 
Xanthyl radicals 318

4.7.6 
Thioxanthyl and related radicals 321

4.7.7 
Selenoxanthyl radicals 325

4.7.8 
Acridinyl and related radicals 327

4.7.9 
Phenanthridinyl and related radicals 328

4.7.10 
Diphenylmethyl-type radicals containing heterocyclic 6 p-electron systems 328

4.8 
Radicals with 15 conjugated p-electrons 347

4.9 
Radicals with 17 conjugated p-electrons 348

4.10 
Radicals with 19 conjugated p-clectrons 349

4.10.1 
Benzopyrenyl radical 349

4.10.2 
Triphenylmethyl radicals 349

4.10.3 
9-Phenylfluorenyl radicals 367

4.10.4 
Triphenylmethyl radicals with carbon-connected ortho-positions 369

4.10.5 
Phenylxanthyl radicals 369

4.10.6 
Triphenylmethyl-type radicals containing 5-membered rings 370

4.11 
Figures 371

4.12 
References for 4 378

5 
Nitrogen-centered radicals (F.A. NEUGEBAUER) 387

5.0 
Introduction 387

5.1 
Aminyl radicals 388

5.2 
Borylaminyl radicals 438

5.3 
Germylaminyl radicals 439

5.4 
Hydrazyl and hydrazonyl radicals 439

5.5 
Oxyaminyl radicals 481

5.6 
Phosphorylaminyl radicals 498

5.7 
Thioaminyl radicals 499

5.8 
Silylaminyl radicals 560

5.9 
Iminyl radicals 563

5.10 
Diazenyl radicals 575

5.11 
Triazenyl radicals 580

5.12 
Iminoxyl radicals 584

5.13 
(Azo)oxyl radicals 633

5.14 
Iminothiyl radicals 634

5.15 
References for 5 635

List of symbols and abbreviations (H. FISCHER) 643

Index of Substances (See Vol. 17H)





