Synthesis and characterization of non-symmetrical photoswitchable DTE(OMe) sensitizers

被引：2
|
作者：
Ziebart, Nandor [1 ]
Schroeer, Pierre [1 ]
Rueck-Braun, Karola [1 ]
机构：
[1] Tech Univ Berlin, Inst Chem, Str 17 Juni 135, D-10623 Berlin, Germany
来源：
TETRAHEDRON | 2018年 / 74卷 / 38期
关键词：
Diarylethene; Molecular photoswitch; BTD; Energy transfer; PHOTOCHROMISM; DERIVATIVES; BENZOTHIADIAZOLE; EFFICIENCY; MOLECULES; DYES;
D O I：
10.1016/j.tet.2018.05.042
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
DTE-BODIPY 2 and BTD-DTE 3 were designed for reversible light modulation of electron- and energy-transfer processes on TiO2, and showed almost complete ring closure. In BTD-DTE 3 the BTD is an acceptor group in the open form (OF), and an energy donor group in the closed form (CF), but this property is depending on the solvent. Quantum yields for ring closure decreased (BTD-DTE 3: factor 5; DTE-BODIPY 2: factor 12) compared to DTE 1, because of it-system elongation in OFs, and also cycloreversion quantum yields became smaller (BTD-DTE 3: factor 1.4; DTE-BODIPY 2: factor 2.2). (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：5561 / 5566
页数：6
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