PHOTOPHYSICAL PROPERTIES OF 2-NITRO-5,10,15,20-TETRA-P-TOLYLPORPHYRINS

被引：84

作者：

GUST, D

MOORE, TA

LUTTRULL, DK

SEELY, GR

BITTERSMANN, E

BENSASSON, RV

ROUGEE, M

LAND, EJ

DESCHRYVER, FC

VANDERAUWERAER, M

机构：

[1] ARIZONA STATE UNIV,DEPT CHEM,TEMPE,AZ 85287

[2] MUSEUM NATL HIST NAT,BIOPHYS LAB,CNRS,ERA 951,F-75231 PARIS 05,FRANCE

[3] CHRISTIE HOSP & HOLT RADIUM INST,PATERSON INST CANC RES,MANCHESTER M20 9BX,LANCS,ENGLAND

[4] CATHOLIC UNIV LEUVEN,AFDELING ORGAN SCHEIKUNDE,B-3000 LOUVAIN,BELGIUM

来源：

PHOTOCHEMISTRY AND PHOTOBIOLOGY | 1990年 / 51卷 / 04期

关键词：

D O I：

10.1111/j.1751-1097.1990.tb01733.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— Tetraarylporphyrins substituted with nitro groups at fipyrrolic positions are potential candidates for electron‐accepting pigments in model systems for photosynthesis. The photophysics of 2‐nitro‐5,10,15,20‐tetra‐p‐tolylporphyrin and its zinc analog have been studied in order to evaluate this potential. The ground state absorption spectrum, the triplet‐triplet absorption spectrum, the fluorescence emission spectrum, and associated photophysical parameters have been determined. The molecules have short singlet lifetimes and anomalous temperature‐ and solvent‐dependent emission spectra which are consistent with the formation of an intramolecular charge transfer state of the type P+ ‐NO2; in which the nitro group is twisted about its bond to the porphyrin, relative to the ground state conformation. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：419 / 426

页数：8

共 49 条

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