INTRAMOLECULAR DONOR-ACCEPTOR SYSTEMS - STRUCTURES OF NOVEL LINKED PORPHYRIN PHENOLPHTHALEIN MOLECULAR-SYSTEMS

被引：9

作者：

DSOUZA, F ^{[1
]}

KRISHNAN, V ^{[1
]}

机构：

[1] INDIAN INST SCI,DEPT INORGAN & PHYS CHEM,BANGALORE 560012,KARNATAKA,INDIA

来源：

PHOTOCHEMISTRY AND PHOTOBIOLOGY | 1990年 / 51卷 / 03期

关键词：

D O I：

10.1111/j.1751-1097.1990.tb01712.x

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：

Abstract— Intramolecular donor‐acceptor systems bearing porphyrins covalently linked to phenol‐phthalein at various distances and at different orientations have been synthesized. Optical absorption and emission spectra and magnetic resonance studies reveal interaction between the porphyrin unit and lactone/semiquinone forms of phenolphthalein. The charge‐transfer quenching of fluoresence in these systems is found to be more pronounced compared to the intermolecular systems. The lifetime studies are interpreted in terms of intramolecular electron transfer. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：285 / 291

页数：7

共 22 条

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