Concerning the triplet energies of non-metallated phthalocyanines and the mechanism of singlet oxygen (1Δg)-sensitized phthalocyanine luminescence

被引：19

作者：

Baigel, DM ^{[1
]}

Gorman, AA ^{[1
]}

Hamblett, I ^{[1
]}

Hill, TJ ^{[1
]}

机构：

[1] Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY | 1998年 / 43卷 / 03期

关键词：

singlet oxygen; phthalocyanines; sensitized luminescence;

D O I：

10.1016/S1011-1344(98)00113-4

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Establishment of equilibria for triplet energy transfer between singlet oxygen ((1)Delta(g)) and both 2,3,9,10,16,17,23,24-octahexadecylphthalocyanine (OHPC) and tetra-t-butylphthalocyanine (TBPC) (a) demonstrates that the identical tripler energies of these non-metallated phthalocyanines, 22.8 +/- 0.2 kcal mol(-1), are very significantly less than hitherto thought and (b) provides strong support for a mechanism of (1)Delta(g)-sensitized phthalocyanine luminescence which involves triplet energy transfer from (1)Delta(g) to the phthalocyanine triplet, these two species being the electronically excited components of a triplet energy transfer equilibrium. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：229 / 231

页数：3

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