OBSERVATION OF CONFORMATIONAL RELAXATION HINDRANCE IN THE SINGLET EXCITED-STATE FOR PORPHYRIN INCORPORATED IN A LIPID-MEMBRANE

被引：6
作者：
ANIKIN, MV
BOROVKOV, VV
ISHIDA, A
WASA, K
SAKATA, Y
机构：
[1] RES INST INNOVAT TECHNOL EARTH,9-2 KIZUGAWADAI,KIZU CHO,KYOTO 61902,JAPAN
[2] OSAKA UNIV,INST SCI & IND RES,IBARAKI,OSAKA 567,JAPAN
来源：
CHEMICAL PHYSICS LETTERS | 1994年 / 226卷 / 3-4期
关键词：
D O I：
10.1016/0009-2614(94)00730-6
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：
The behavior of two free base porphyrins, 5,10,15,20-tetrakis(p-tolyl)porphine (TTP) and 5,10,15,20-tetrakis(3,5-di-tert-butylphenyl)porphine (TBP), incorporated into dipalmitoyl-phosphatidylcholine membranes has been comparatively studied by steady-state fluorescence spectroscopy. TBP in the membrane interior, in contrast to TTP, showed pronounced decrease of Stokes shift and displacement of Q bands toward shorter wavelengths due to the restriction of its conformational freedom caused by the interaction of tert-butyl residues with ordered lipid hydrocarbon chains.
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页码：337 / 343
页数：7
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