Landolt-Brnstein Group II
: Molecules and Radicals
Volume 3 

Luminescence of Organic Substances 

Title Page, Preface 
1 
Introduction 1

2 
Absorption, emission, decay time, quantum efficiency, and further information on 6

fluorescence and phosphorescence

2.0	
Explanations 6

2.1	
C2 - C55 (substances listed in 2.2 - 2.5 excluded) 7

2.2	
Carbonium ions, natural substances, and substances with not exactly known structural 161

formulas

2.3	
p-Oligophenylenes 164

2.4	
Substituted oxazoles 165

2.5	
Chelates 173

2.6	
Molecular compounds 188

3	
Luminescence spectra 191

3.1	
Typical luminescence spectra 191

3.2	
Spectra of standard substances 228

4	
Special data on the luminescence centers (luminescent molecules and their environment) 230

4.1	
Vibrational structure of selected spectra at low temperatures 230

4.2	
Relations between absorption and emission spectrum 263

4.3	
The quantum efficiency 265

4.4	
Triplet-singlet transitions 272

4.5	
Degree of polarization 274

5	
Intermolecular processes in the excited state 285

5.1	
Interaction between fluorescent molecules and solvent; dipole moments 285

5.2	
Reactions in the excited state 291

5.3	
Quenching of fluorescence, energy transfer, sensitized fluorescence, dimer or excimer 296

fluorescence

6	
Application of luminescent organic substances in the scintillation technique 339

6.0	
Introduction 339

6.1	
Dependence of the radiation energy on the incident energy 341

6.2	
kB values 343

6.3	
Ratios of pulse heights at alpha- and beta-excitation 343

6.4	
Absolute energy efficiency 346

6.5	
Characteristic constants for the energy efficiency (Kallmann parameter) 347

6.6	
Relative pulse heights 350

7	
Reduction of luminescence by radiation damage 375

8	
References 378

8.1	
Cited references 378

8.2	
Monographs and reviews 393


Index of substances	394


