Results 241 to 250 of about 290,871 (296)
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Journal of Molecular Spectroscopy, 1989
The 0-0 band of the a3Πr-X1Σ+ transition has been fully analyzed. The b3Σ state observed by Sharma (Astrophys. J. 113, 210–218 (1951)) is shown to be a 3Δ state and the analysis of the 0-0, 0–1, and 0–2 bands of the b3Δ-a3Πr transition has been completed.
Mahieu, Emmanuel +2 more
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The 0-0 band of the a3Πr-X1Σ+ transition has been fully analyzed. The b3Σ state observed by Sharma (Astrophys. J. 113, 210–218 (1951)) is shown to be a 3Δ state and the analysis of the 0-0, 0–1, and 0–2 bands of the b3Δ-a3Πr transition has been completed.
Mahieu, Emmanuel +2 more
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The triplet state of pyridoxal
Biochemical and Biophysical Research Communications, 1968Abstract The absorption spectra, as well as the relative distribution of the structures of pyridoxal in aqueous solution, have been investigated in several laboratories ( Williams and Neilands, 1954 ; Metzler and Snell, 1955 ; Anderson and Martell, 1964) .
J E, Wampler, J E, Churchich
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Excited-State Triplet-Triplet Absorption in αNPO
Applied Spectroscopy, 1987Time-resolved excited-state triplet-triplet absorption measurements in αNPO solutions were performed. A concentration quenching effect on the excited absorption and fluorescence spectra, due to excimer formation, was seen. A numerical analysis of the results yielded the rate constants for intersystem crossing, triplet quenching by O2, triplet self ...
A. N. Dharamsi, A. B. Hassam
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Triplet-triplet absorption and energy transfer from high triplet states
Spectrochimica Acta Part A: Molecular Spectroscopy, 1971Abstract A simple method for determining of triplet-triplet extinction coefficients which is based on the non-linear effect in transitions between three levels of Jablonsky diagram has been suggested. Triplet concentrations were obtained from the expression N T st = C 0 (1 - τ r /τ d ), where τ r and τ d are the rise time and ...
M.V. Alfimov +3 more
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Journal of Molecular Spectroscopy, 1992
Abstract Twenty bands of the a3Πr-X1Σ+ transition of AlBr have been rotationally analyzed involving v′ from 0 to 10 and v″ from 0 to 8. The Π1 component is perturbed in the v = 0 and 1 vibrational levels. A new system has been observed for the first time; it is formed of 26 bands and is interpreted as the b3Σ+-X1Σ+ transition.
BREDOHL, Harald +4 more
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Abstract Twenty bands of the a3Πr-X1Σ+ transition of AlBr have been rotationally analyzed involving v′ from 0 to 10 and v″ from 0 to 8. The Π1 component is perturbed in the v = 0 and 1 vibrational levels. A new system has been observed for the first time; it is formed of 26 bands and is interpreted as the b3Σ+-X1Σ+ transition.
BREDOHL, Harald +4 more
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1976
In our discussion in Chapter 1 of the various photophysical processes which can occur in an organic molecule upon absorption of light, we saw that two types of electronic excited states are possible. The first, initially reached upon excitation, is the singlet, in which the electronic spins remain paired.
Dwaine O. Cowan, Ronald L. Drisko
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In our discussion in Chapter 1 of the various photophysical processes which can occur in an organic molecule upon absorption of light, we saw that two types of electronic excited states are possible. The first, initially reached upon excitation, is the singlet, in which the electronic spins remain paired.
Dwaine O. Cowan, Ronald L. Drisko
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Localized states in triplet superconductor–ferromagnet–triplet superconductor junctions
Journal of Physics: Condensed Matter, 2008We examine the localized Andreev states formed at a triplet superconductor–ferromagnet–triplet superconductor Josephson junction. These mid-gap states dominate the low-energy transport through the junction, which shows a rich dependence upon the junction parameters.
Brydon, P., Manske, D.
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The Journal of Chemical Physics, 1971
The phosphorescence spectra of benzaldehyde-h6, −1d1, −4d1, −3, 5d2 and −d6 have been studied optically in close packed matrices (acetophenone and methyl benzoate) and relaxed matrices (methylcyclohexane and perfluoro-n-hexane) at 4.2°K. All the spectra were sharp and could be analyzed vibrationally. In the close packed matrices, of the 11 possible out-
Motohiko Koyanagi, Lionel Goodman
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The phosphorescence spectra of benzaldehyde-h6, −1d1, −4d1, −3, 5d2 and −d6 have been studied optically in close packed matrices (acetophenone and methyl benzoate) and relaxed matrices (methylcyclohexane and perfluoro-n-hexane) at 4.2°K. All the spectra were sharp and could be analyzed vibrationally. In the close packed matrices, of the 11 possible out-
Motohiko Koyanagi, Lionel Goodman
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Triplet State of Triphenylamine
Nature, 1969Two transient species with absorption peaks at 5300 and 6100 A have been observed in de-oxygenated solutions of triphenylamine by a flash photolysis technique1,2. The major product at room temperature is said to have been the 6100 A compound, and this was considered to be an “intermediate” from which N-phenyl carbazole was formed in the presence of ...
G. C. TERRY +2 more
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The Journal of Chemical Physics, 1963
The sensitization of biacetyl fluorescence and phosphorescence using benzene as donor has been studied at 25°C in aerated and de-aerated hexane solutions. Electronic energy transfer from the lowest excited singlet state of benzene to biacetyl producing either the first or second excited singlet state of biacetyl proceeds with a rate constant (3.3×1010 ...
Jean T. Dubois, Francis Wilkinson
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The sensitization of biacetyl fluorescence and phosphorescence using benzene as donor has been studied at 25°C in aerated and de-aerated hexane solutions. Electronic energy transfer from the lowest excited singlet state of benzene to biacetyl producing either the first or second excited singlet state of biacetyl proceeds with a rate constant (3.3×1010 ...
Jean T. Dubois, Francis Wilkinson
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