Low-temperature laser photolysis of 4-hydroxybenzophenone in ethanol solution: temperature-dependent spectral changes of the excited triplet state

1987 ◽  
Vol 91 (25) ◽  
pp. 6385-6388 ◽  
Author(s):  
Mikio. Hoshino
Keyword(s):  
Low Temperature ◽  
Triplet State ◽  
Ethanol Solution ◽  
Laser Photolysis ◽  
Excited Triplet State ◽  
Solution Temperature ◽  
Temperature Dependent ◽  
Excited Triplet ◽  
Spectral Changes

Low-temperature laser photolysis of benzophenone in neat diethylaniline: Optical detection of an excited triplet state with a strong charge-transfer structure at 77 K

1986 ◽  
Vol 132 (2) ◽  
pp. 209-212 ◽  
Author(s):  
Mikio Hoshino ◽  
Hiroshi Seki ◽  
Masao Kaneko ◽  
Kazuhiko Kinoshita ◽  
Haruo Shizuka
Keyword(s):  
Charge Transfer ◽  
Low Temperature ◽  
Triplet State ◽  
Optical Detection ◽  
Laser Photolysis ◽  
Excited Triplet State ◽  
Excited Triplet ◽  
Transfer Structure

Temperature Dependent Emission of Hexarhenium(III) Clusters [Re6(μ3-S)8X6]4-(X = Cl-, Br-, and I-):  Analysis by Four Excited Triplet-State Sublevels

2005 ◽  
Vol 44 (18) ◽  
pp. 6308-6313 ◽  
Author(s):  
Noboru Kitamura ◽  
Yuichi Ueda ◽  
Shoji Ishizaka ◽  
Konatsu Yamada ◽  
Masanori Aniya ◽  
...  
Keyword(s):  
Triplet State ◽  
Excited Triplet State ◽  
Temperature Dependent ◽  
Excited Triplet

Temperature-dependent saturation measurements in the photo-excited triplet state of pyrene-d-10

1972 ◽  
Vol 8 (3) ◽  
pp. 259-270 ◽  
Author(s):  
L.J Sims ◽  
T.M Kite ◽  
A.B Denison
Keyword(s):  
Triplet State ◽  
Excited Triplet State ◽  
Temperature Dependent ◽  
Excited Triplet

Infrared spectrum and molecular structure of lowest electronically excited triplet state of 1,4-dicyano-2,3,5,6-tetrafluorobenzene in low-temperature matrices

2004 ◽  
Vol 688 (1-3) ◽  
pp. 177-183 ◽  
Author(s):  
Nobuyuki Akai ◽  
Daisuke Negishi ◽  
Satoshi Kudoh ◽  
Masao Takayanagi ◽  
Munetaka Nakata
Keyword(s):  
Molecular Structure ◽  
Low Temperature ◽  
Infrared Spectrum ◽  
Triplet State ◽  
Excited Triplet State ◽  
Excited Triplet ◽  
Electronically Excited

Photoyellowing of chemically modified chemithermomechanical pulps (CTMP) from Eucalyptus globulus under various atmospheres

Holzforschung ◽  
2014 ◽  
Vol 68 (2) ◽  
pp. 143-149 ◽  
Author(s):  
Yasuo Kojima ◽  
Yoshiaki Kato ◽  
Yukiko Ishikura ◽  
Seung-Lak Yoon ◽  
Toshihiro Ona
Keyword(s):  
Triplet State ◽  
Oxygen Reduction ◽  
Sodium Borohydride ◽  
Eucalyptus Globulus ◽  
Uv Spectra ◽  
Excited Triplet State ◽  
Aryl Ether ◽  
Excited Triplet ◽  
Chemically Modified ◽  
Spectral Changes

Abstract Chemithermomechanical pulps (CTMP) were prepared from Eucalyptus globulus and photoirradiated, and the responses have been examined by means of ultraviolet (UV) microspectrophotometer. The absorbance in the UV spectra of fiber walls increased in the range of 300 of 350 nm as a result of photoirradiation, indicating the formation of conjugated double-bound systems in the fiber walls. These spectral changes occurred only on the irradiated surface of sheets. CTMP photoirradiation under various atmospheres indicated that the presence of oxygen in the irradiation atmosphere is not necessary for CTMP yellowing. In nitrogen or vacuum, photoyellowing was at the same level as observed under oxygen. This observation was interpreted as a result of direct elimination of proton radicals from free phenolic groups and/or cleavage of β-aryl ether linkages. This induced probably the excited triplet state of α-carbonyl structures in CTMP, which leads to chromophore formation in the absence of oxygen. Reduction of CTMP with sodium borohydride impeded effectively the effects of photoirradiation only in the absence of oxygen. On the contrary, acetylation of CTMP had no effect in the absence of oxygen but led to photobleaching in the presence of oxygen.

Laser induced transient absorptions of the excited triplet state of 9,10-anthraquinone-2-sulfonate. A further study by 248 nm laser photolysis

1999 ◽  
Vol 54 (4) ◽  
pp. 373-376 ◽  
Author(s):  
Jian-hua Ma ◽  
Wei-zheng Lin ◽  
Wen-fen Wang ◽  
Si-de Yao ◽  
Nian-yun Lin
Keyword(s):  
Triplet State ◽  
Laser Photolysis ◽  
Excited Triplet State ◽  
Excited Triplet

Aromaticity Reversal in the Lowest Excited Triplet State of Archetypical Möbius Heteroannulenic Systems

2016 ◽  
Vol 128 (22) ◽  
pp. 6597-6601 ◽  
Author(s):  
Juwon Oh ◽  
Young Mo Sung ◽  
Woojae Kim ◽  
Shigeki Mori ◽  
Atsuhiro Osuka ◽  
...  
Keyword(s):  
Triplet State ◽  
Excited Triplet State ◽  
Excited Triplet
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