PHOTOPHYSICS AND PHOTOCHEMISTRY OF TETRAANTHRAPORPHYRAZINES - ATTEMPTS TO OBTAIN A NEW-GENERATION OF PHOTOSENSITIZERS

被引：20

作者：

FREYER, W

STIEL, H

TEUCHNER, K

LEUPOLD, D

机构：

[1] Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, W-12489 Berlin

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1994年 / 80卷 / 1-3期

关键词：

D O I：

10.1016/1010-6030(94)01051-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Linearly benzo-annulated copper porphyrazines, such as octaphenyltetraanthraporphyrazinato-copper and octapentoxytetranaphthoporphyrazinato-copper, with absorption maxima at about 880 nm, were synthesized. These compounds exhibit very low-lying triplets with an energy below the activation energy of singlet oxygen. Therefore they do not generate singlet oxygen. The transient absorption spectra of the T(l)-T(x) transition were measured. The solvent dependence of the photophysical parameters in the triplet manifold is discussed. On irradiation in the presence of CBr4, pi-Cation radicals are formed.

引用

页码：161 / 167

页数：7

共 31 条

[1] OCTA-ALKOXY PHTHALOCYANINE AND NAPHTHALOCYANINE DERIVATIVES - DYES WITH Q-BAND ABSORPTION IN THE FAR RED OR NEAR-INFRARED [J].