Intramolecular Spin Alignment Utilizing the Excited Molecular Field between the Triplet (S= 1) Excited State and the Dangling Stable Radicals (S= 1/2) as Studied by Time-Resolved Electron Spin Resonance:  Observation of the Excited Quartet (S= 3/2) and Quintet (S= 2) States on the Purely Organic π-Conjugated Spin Systems

2000 ◽  
Vol 122 (5) ◽  
pp. 984-985 ◽  
Author(s):  
Yoshio Teki ◽  
Sadaharu Miyamoto ◽  
Koji Iimura ◽  
Masaaki Nakatsuji ◽  
Yozo Miura
Keyword(s):  
Electron Spin Resonance ◽  
Excited State ◽  
Electron Spin ◽  
Spin Systems ◽  
Molecular Field ◽  
Spin Alignment ◽  
Time Resolved ◽  
Spin Resonance ◽  
Stable Radicals

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.

Size, Hydration, and Shape of SDS/Heptane Micelles Investigated by Time-Resolved Fluorescence Quenching and Electron Spin Resonance

Langmuir ◽  
2001 ◽  
Vol 17 (22) ◽  
pp. 6765-6770 ◽  
Author(s):  
Radha Ranganathan ◽  
Miroslav Peric ◽  
Rosa Medina ◽  
Ulises Garcia ◽  
Barney L. Bales ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Fluorescence Quenching ◽  
Electron Spin ◽  
Time Resolved Fluorescence ◽  
Time Resolved ◽  
Spin Resonance

Reactions of 1-Hydroxy-1-methylethyl Radicals with NO2-:  Time-Resolved Electron Spin Resonance

2006 ◽  
Vol 110 (38) ◽  
pp. 11046-11052 ◽  
Author(s):  
Piotr Filipiak ◽  
Donald M. Camaioni ◽  
Richard W. Fessenden ◽  
Ian Carmichael ◽  
Gordon L. Hug
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Time Resolved ◽  
Spin Resonance
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