scholarly journals Protection of densely populated excited triplet state ensembles against deactivation by molecular oxygen

2016 ◽  
Vol 45 (17) ◽  
pp. 4668-4689 ◽  
Author(s):  
Mikhail A. Filatov ◽  
Stanislav Baluschev ◽  
Katharina Landfester
Keyword(s):  
Triplet State ◽  
Molecular Oxygen ◽  
Excited States ◽  
Excited Triplet State ◽  
Excited Triplet ◽  
Triplet Excited States

Different approaches towards protection of triplet excited states against deactivation by molecular oxygen are summarized and reviewed.

THE NATURE OF FORMALDEHYDE IN ITS LOW-LYING EXCITED STATES

1958 ◽  
Vol 36 (1) ◽  
pp. 31-38 ◽  
Author(s):  
G. W. Robinson ◽  
V. Erdmanis DiGiorgio
Keyword(s):  
Triplet State ◽  
Excited States ◽  
Vibrational Analysis ◽  
Spin Correlation ◽  
Excited Triplet ◽  
Long Wavelength ◽  
Near Ultraviolet ◽  
Aldehydes And Ketones ◽  
Correlation Rules ◽  
Triplet Excited States

Long path length, high resolution spectra in the near ultraviolet of H2CO and D2CO at −78 °C. have been obtained, and further strong evidence in support of a non-planar excited state is presented. The double-headed bands to the long wavelength side of the singlet–singlet system are shown to belong to the singlet–triplet transition. A vibrational analysis and partial rotational analysis shows the excited triplet state to be very similar to the excited singlet state. The larger C—O stretching frequency in the triplet state may characterize the multiplicity of these states in the simple aliphatic aldehydes and ketones. It is found that the C—O bond order in both states is very nearly 1.5, and striking similarities between the bonding in these states and the C—O bonding in formic acid are pointed out. The similarity between the singlet and triplet excited states may not extend to chemical behavior because of spin correlation rules, but there are no general reasons why the triplet state should be more reactive than the singlet.

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

scholarly journals TRANSIENT RAMAN SPECTRA OF ALL-TRANS- AND 9-CIS-RETINAL IN THE EXCITED TRIPLET STATE

1984 ◽  
Vol 13 (4) ◽  
pp. 549-550 ◽  
Author(s):  
Hiro-o Hamaguchi ◽  
Hiromi Okamoto ◽  
Mitsuo Tasumi
Keyword(s):  
Triplet State ◽  
Raman Spectra ◽  
Excited Triplet State ◽  
Excited Triplet

Interchromophore interaction of the excited triplet state in poly(naphthylalkyl methacrylate) copolymer films

1992 ◽  
Vol 88 (18) ◽  
pp. 2743 ◽  
Author(s):  
Hideaki Katayama ◽  
Tsutomu Tawa ◽  
Shinzaburo Ito ◽  
Masahide Yamamoto
Keyword(s):  
Triplet State ◽  
Excited Triplet State ◽  
Excited Triplet ◽  
Copolymer Films ◽  
Methacrylate Copolymer
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