共查询到20条相似文献,搜索用时 15 毫秒
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V. V. Sapunov 《Journal of Applied Spectroscopy》1996,63(4):514-521
Institute of Molecular and Atomic Physics, Academy of Sciences of Belarus, 70. F. Skorina Ave., Minsk, 220072, Belarus. Translated
from Zhurnal Prikladnoi Spektroskopii, Vol. 63, No. 4, pp. 613–621, July–August, 1996. 相似文献
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Interchromophore interactions and energy transfer in covalently bound porphyrin-chlorine heterodimer
V. N. Knyukshto É. I. Zen’kevich V. A. Kuz’mitskii V. I. Gael’ A. M. Shul’ga E. G. Levinson A. F. Mironov 《Journal of Applied Spectroscopy》1998,65(1):75-83
Energetis of interchromophore interactions in a covalently bound prophyrin-chlorine heterodimer (Por-O-Chl) is investigated
at temperatures from 77 to 293 K in solvents with differing polarity (toluene, tetrahydrofurane, and diethyl ether: petroleum
ester: isopropanole=5∶5∶2 mixture). We substantiate the conclusion that the strong quenching of fluoresence and phosphorescence
of the porphyrin fragments in both stable isomers of the Por-O-Chl heterodimer is induced not by the photoinduced charge transfer
but rather by efficient processes of singlet-singlet (probability FSS=1.3·1011 to 6.8°1010 sec−1) and triplet-triplet (probability FTT≥108 sec−1) radiationless electronic excitation transfer. It is shown that the S−S transfer takes place without quantum losses from
the thermodynamically equilibrated S1 state of the donor, and its dynamics and main regularities at temperatures from 77 to 293 K are described by the inductive
resonance theory without any additional asssumptions.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 65, No. 1, pp. 75–82, January–February, 1998. 相似文献
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Kuzbass State Technical University, 28 Vesennyaya Str., Kemerovo, 650026, Russia. Translated from Zhurnal Prikladnoi Spektroskopii,
Vol. 62, No. 6, pp. 58–61, November–December, 1995. 相似文献
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N. A. Borisevich D. A. Kazberuk S. V. Mel'nichuk S. A. Tikhomirov G. B. Tolstorozhev 《Journal of Applied Spectroscopy》1995,62(3):441-446
Institute of Molecular and Atomic Physics, Academy of Sciences of Belarus, 70 F. Skaryna Ave, Minsk 220072, Belarus. Translated
from Zhurnal Prikladnoi Spektroskopii, Vol. 62, No. 3, pp. 49–55, May–June, 1995. 相似文献