Time-Resolved Electron Spin Resonance of Gallium and Germanium Porphyrins in the Excited Triplet State

2000 ◽  
Vol 39 (3) ◽  
pp. 468-472 ◽  
Author(s):  
Kazuyuki Ishii ◽  
Satoko Abiko ◽  
Nagao Kobayashi
Keyword(s):  
Electron Spin Resonance ◽  
Triplet State ◽  
Electron Spin ◽  
Excited Triplet State ◽  
Time Resolved ◽  
Excited Triplet ◽  
Spin Resonance

SPIN ALIGNMENT BETWEEN THE TRIPLET EXCITED STATE OF PHENYLANTHRACENE AND THE DANGLING VERDAZYL RADICAL AS STUDIED BY TIME-RESOLVED ELECTRON SPIN RESONANCE

2001 ◽  
Vol 15 (28n30) ◽  
pp. 4029-4031 ◽  
Author(s):  
YOSHIO TEKI ◽  
MASAAKI NAKATSUJI ◽  
YOZO MIURA
Keyword(s):  
Fine Structure ◽  
Electron Spin Resonance ◽  
Electron Spin ◽  
Spectral Simulation ◽  
Spin Alignment ◽  
Time Resolved ◽  
Relative Population ◽  
Excited Triplet ◽  
Verdazyl Radical ◽  
Spin Resonance

The photo-excited quartet (S=3/2) high spin state of a radical-excited triplet pair of a novel compound, phenylanthracene-verdazyl radical, was detected by time-resolved electron spin resonance (TRESR) technique. The TRESR spectrum was well analyzed by the ordinary spin Hamiltonian with the Zeeman and fine-structure terms. The g value, fine-structure splitting, and relative population of the Ms sublevels have been determined to be g=2.0043, D=0.0230 cm -1, E=0.0 cm -1 and P1/2′=P-12′=0.5 and P3/2′=P-3/2′=0.0, respectively, by the spectral simulation. The direct observation of the excited quartet state shows tha the photo-induced intramolecular spin alignment is realized between the excited triplet state (S=1) of the phenylanthracene moiety and the doublet spin (S=1/2) of the dangling verdazyl radical.

Time-resolved electron spin resonance study of the nonphosphorescent triplet state of trans-diazastilbene

1989 ◽  
Vol 93 (12) ◽  
pp. 4714-4715 ◽  
Author(s):  
Mikio Yagi ◽  
Kenji Mikuni ◽  
Keiichi Takano ◽  
Yasushi Shioya ◽  
Jiro Higuchi
Keyword(s):  
Electron Spin Resonance ◽  
Triplet State ◽  
Electron Spin ◽  
Electron Spin Resonance Study ◽  
Time Resolved ◽  
Spin Resonance ◽  
Spin Resonance Study
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