Photophysical properties and photoreduction of N-acetyl- and N-benzoylphthalimides

被引：1
作者：
Biczok, Laszlo [2 ]
Goerner, Helmut [1 ]
机构：
[1] Max Planck Inst Bioanorgan Chem, D-45413 Mulheim, Germany
[2] Hungarian Acad Sci, Chem Res Ctr, H-1525 Budapest, Hungary
来源：
CHEMICAL PHYSICS | 2012年 / 392卷 / 01期
关键词：
N-acylphthalimides; Photoreduction; Triplet state; Radical; LASER FLASH-PHOTOLYSIS; SUBSTITUTED PHTHALIMIDES; PHOTOACID GENERATORS; PHOTOCHEMISTRY; AMINES; ALKYLPHTHALIMIDES; 1,8-NAPHTHALIMIDE; NAPHTHALIMIDES; FLUORESCENCE; BENZYLATION;
D O I：
10.1016/j.chemphys.2011.08.012
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 photophysical properties and photoreduction of N-acetylphthalimide (AcP) and N-benzoylphthalimide (BzP), N-3,4,5-trimethoxybenzoylphthalimide (trimethoxyBzP) and N-4-nitrobenzoylphthalimide (nitroBzP) were studied by steady-state and transient techniques. Radicals and their precursor triplet states were detected by flash photolysis. The triplet state properties of AcP and BzP were characterized. In contrast, no triplet absorption was observed with ns-detection for trimethoxyBzP and nitroBzP. Specific products are formed upon electron transfer from triethylamine to the photoexcited acylphthalimides. In addition, H-atom transfer from 2-propanol or other alcohols to the triplet state takes place. The properties of several radical intermediates involved in photoreduction of the acylphthalimides as well as some structure-function relationships are described. (C) 2011 Elsevier B. V. All rights reserved.
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页码：10 / 15
页数：6
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