Planar chirality of twisted trans-azobenzene structure induced by chiral transfer from binaphthyls.

Planar chirality of twisted trans-azobenzene structure induced by chiral transfer from binaphthyls.
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DOI：
10.1021/jo201578z
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发表时间：
2011-08
期刊：
The Journal of organic chemistry
影响因子：
--
通讯作者：
Kazuto Takaishi;A. Muranaka;Masuki Kawamoto;M. Uchiyama
Kazuto Takaishi;A. Muranaka;Masuki Kawamoto;M. Uchiyama
中科院分区：
其他
文献类型：
--
作者：
Kazuto Takaishi;A. Muranaka;Masuki Kawamoto;M. Uchiyama

文献摘要

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通过比较实验圆二色谱(CD)和含时密度泛函(TD)-DFT方法计算的理论圆二色谱，确定了具有手性轴和手性平面的联萘偶氮苯2b的绝对构型。反式偶氮苯部分的CD信号表明，该部分的两个苯环是单向扭曲的。这些具有较短连接基团的二联体可能适合用作手部开关。
The absolute configuration of a binaphthyl-azobenzene dyad 2b, which has a chiral axis and a chiral plane, was determined by comparing the experimental circular dichroism (CD) spectra with the theoretical CD spectra calculated by the time-dependent (TD)-DFT method. The CD signals of the trans-azobenzene moiety indicated that the two benzene rings of this moiety are twisted unidirectionally. It is suggested that these dyads with shorter linkers may be suitable for use as chiroptical switches.