Temperature Dependence of Excited Singlet S1-State Deactivation in Corrole Free Bases

被引：0
|
作者：
Y. H. Ajeeb
T. B. Karlovich
L. L. Gladkov
W. Maes
M. M. Kruk
机构：
[1] Art,Institute for Materials Research (IMO
[2] Sciences,IMOMEC)
[3] and Technology University in Lebanon,undefined
[4] Belarusian State Technological University,undefined
[5] Belarusian State Academy of Communications,undefined
[6] Hasselt University,undefined
来源：
Journal of Applied Spectroscopy | 2019年 / 86卷
关键词：
corrole free base; fluorescence; tautomerization; intersystem crossing; quantum yield;
D O I：
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中图分类号：
学科分类号：
摘要：
NH-tautomerization in the lowest excited singlet S1-state of 5,10-mesityl-15-(2,6-dichloropyrimidinyl)corrole free base was studied in solution at 278–318 K and shown to be the dominant deactivation channel for electronic excitation energy of its short-wavelength tautomer T2. NH-tautomerization was found to cause significant changes in the deactivation quantum yields of electronic excitation energy of this tautomer as a function of temperature. About 90% of the electronic excitation energy of corrole molecules accumulated in the singlet S1-state of long-wavelength tautomer T1 after phototautomerization if the temperature was increased to 318 K.
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页码：389 / 395
页数：6
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