Solvent Effects on the Nonradiative Relaxation Processes of the Lowest Excited Singlet States of Meso-substituted Bromoanthracenes

1983 ◽  
Vol 56 (6) ◽  
pp. 1851-1852 ◽  
Author(s):  
Kumao Hamanoue ◽  
Toshiharu Hidaka ◽  
Toshihiro Nakayama ◽  
Hiroshi Teranishi ◽  
Minoru Sumitani ◽  
...  
Keyword(s):  
Solvent Effects ◽  
Relaxation Processes ◽  
Nonradiative Relaxation ◽  
Excited Singlet ◽  
Singlet States ◽  
Excited Singlet States

Temperature dependence of the nonradiative relaxation process of the lowest excited singlet states of meso-substituted bromoanthracenes

1983 ◽  
Vol 87 (5) ◽  
pp. 813-816 ◽  
Author(s):  
Masanao Tanaka ◽  
Ikuzo Tanaka ◽  
Shigeyoshi Tai ◽  
Kumao Hamanoue ◽  
Minoru Sumitani ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Relaxation Process ◽  
Nonradiative Relaxation ◽  
Excited Singlet ◽  
Singlet States ◽  
Excited Singlet States

Quasiparticle Excitations in Polyenes and Polyacetylene

1987 ◽  
Vol 109 ◽  
Author(s):  
Paul Tavan ◽  
Klaus Schulten
Keyword(s):  
Dispersion Relations ◽  
Excited Singlet ◽  
Quasi Particle ◽  
Double Excitation ◽  
Singlet States ◽  
Excited Singlet States ◽  
Electron Excitations ◽  
Quasiparticle Excitations

ABSTRACTWe apply the Pariser-Parr-Pople Hamiltonian to study many-electron excitations in polyenes and polyacetylene. The excited singlet states of polyenes, calculated by a multireference double excitation expansion, are classified as quasi-particle excitations, namely as triplet-triplet magnons and particle-hole excitons. From finite polyene spectra we derive approximate dispersion relations for these quasi-particles in the infinite polyene, i.e. polyacetylene.

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