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Synthesis and characterization of non-symmetrical photoswitchable DTE(OMe) sensitizers
Tetrahedron ( IF 2.1 ) Pub Date : 2018-05-22 , DOI: 10.1016/j.tet.2018.05.042
Nandor Ziebart , Pierre Schroeer , Karola Rueck-Braun

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 π-system elongation in OFs, and also cycloreversion quantum yields became smaller (BTD-DTE 3: factor 1.4; DTE-BODIPY 2: factor 2.2).



中文翻译:

非对称光开关DTE(OMe)敏化剂的合成与表征

DTE-BODIPY 2BTD-DTE 3设计用于TiO 2上电子和能量转移过程的可逆光调制,并显示出几乎完全的闭环。在BTD-DTE 3中,BTD是开放形式(OF)的受体基团,和封闭形式(CF)的能量供体基团,但该性质取决于溶剂。与DTE 1相比,闭环的量子产率降低(BTD-DTE 3:因子5;DTE-BODIPY 2:因子12),这是因为OF中的π系统延长,并且环还原量子产率变小(BTD-DTE 3:系数1.4;DTE-BODIPY 2:系数2.2)。

更新日期:2018-05-22
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