scholarly journals A Study of the Zero Field Splittings of the Lowest Excited Triplet States of Substituted Benzenes and Related Molecules by Optical Detection of Magnetic Resonance, Electron Paramagnetic Resonance, and Molecular Orbital Calculations

1986 ◽  
Vol 59 (2) ◽  
pp. 355-361 ◽  
Author(s):  
Shin-ichi Nagaoka ◽  
Edward T. Harrigan ◽  
Masayo Noda ◽  
Noboru Hirota ◽  
Jiro Higuchi
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Molecular Orbital Calculations ◽  
Zero Field ◽  
Triplet States ◽  
Paramagnetic Resonance ◽  
Substituted Benzenes ◽  
Excited Triplet ◽  
Electron Paramagnetic ◽  
Excited Triplet States ◽  
Resonance Electron

Optical and electron paramagnetic resonance studies of the excited triplet states of UV-B absorbers: 2-ethylhexyl salicylate and homomenthyl salicylate

2015 ◽  
Vol 14 (9) ◽  
pp. 1651-1659 ◽  
Author(s):  
Kazuto Sugiyama ◽  
Takumi Tsuchiya ◽  
Azusa Kikuchi ◽  
Mikio Yagi
Keyword(s):  
Hydrogen Bond ◽  
Electron Paramagnetic Resonance ◽  
Bond Formation ◽  
Intermolecular Hydrogen Bond ◽  
Triplet States ◽  
Paramagnetic Resonance ◽  
Hydrogen Bond Formation ◽  
Excited Triplet ◽  
Electron Paramagnetic ◽  
Excited Triplet States

UV-B absorbers, 2-ethylhexyl salicylate and homomenthyl salicylate, show a photoinduced phosphorescence enhancement, which originates from the photoinduced intermolecular hydrogen-bond formation.

Divacancy Model for P6/P7 Centers in 4H- and 6H-SiC

2006 ◽  
Vol 527-529 ◽  
pp. 527-530 ◽  
Author(s):  
Nguyen Tien Son ◽  
T. Umeda ◽  
Junichi Isoya ◽  
Adam Gali ◽  
M. Bockstedte ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Ab Initio ◽  
Positive Charge ◽  
Triplet States ◽  
Double Positive ◽  
Paramagnetic Resonance ◽  
Excited Triplet ◽  
Electron Paramagnetic ◽  
Excited Triplet States ◽  
Good Agreement

Electron paramagnetic resonance (EPR) studies of the P6/P7 centers in 4H- and 6H-SiC are reported. The obtained principal values of the hyperfine tensors of C and Si neighbors are in good agreement with the values of the neutral divacancy (VCVSi 0) calculated by ab initio supercell calculations. The results suggest that the P6/P7 centers, which were previously assigned to the photo-excited triplet states of the carbon vacancy-carbon antisite pairs in the double positive charge state (VCCSi 2+), are related to the triplet ground states of the C3v/C1h configurations of VCVSi 0.

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