Photophysical properties of corrphycenes

被引：4
作者：
Mártire, DO
Vaveliuk, P
Bilmes, GM
机构：
[1] Natl Univ La Plata, Fac Ciencias Exactas, Inst Invest Fisicoquim Teor & Aplicadas, RA-1900 La Plata, Argentina
[2] CONICET, CIC, Ctr Invest Opt, CIOp, RA-1900 La Plata, Argentina
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2000年 / 56卷 / 11期
关键词：
corrphycenes; fluorescence; triplet states; singlet oxygen;
D O I：
10.1016/S1386-1425(99)00223-1
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The photophysical properties of the Zn salt of octaethylcorrphycene (compound 1) and the doubly protonated octaethylcorrphycene (compound 2) were determined in benzene solutions. Fluorescence spectra and fluorescence quantum yields of Phi F (1) = 0.03 +/- 0.02 and Phi F (2) = 0.06 +/- 0.02 were measured. The triplet-triplet absorption spectra were obtained by means of flash-photolysis experiments. The tripler quantum yield values Phi T (1) = 0.79 +/- 0.08 and Phi T (2) = 0.82 +/- 0.08 were obtained by using laser-induced optoacoustic spectroscopy. The quantum yield of singlet molecular oxygen generation in air-saturated solutions, Phi(Delta) (1) = 0.55 +/- 0.07 and Phi(Delta) (2) = 0.38 +/- 0.05, were also measured using time resolved NIR luminescence. (C) 2000 Elsevier Science B.V. All rights reserved.
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页码：2043 / 2048
页数：6
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