Insight into the Influence of the Chiral Molecular Symmetry on the Chiroptics of Fluorescent BINOL-Based Boron Chelates.

Josué Jiménez, Edurne Avellanal-Zaballa, Sergio Serrano, Alexis R Torres, Antonia R Agarrabeitia, Florencio Moreno, Gilles Muller, Jorge Bañuelos, Beatriz L Maroto, Santiago de la Moya
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引用次数: 2

Abstract

The prominent influence of the molecular symmetry, as defined by the symmetry point group, on the chiroptical behavior (electronic circular dichroism and, especially, circularly polarized luminescence) of simple fluorescent boron chelates (BODIPY and related BOPHY analogues) is studied and discussed. It is shown that increasing the dye symmetry by means of the D3 chiral symmetry group is a workable design option to enhance the level of differential emission of right- and left-circularly polarized light in BODIPY dyes and related emitters, and that the influence of the level of symmetry is stronger than the influence of the higher number of chiral moieties perturbing the acting achiral chromophore.

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手性分子对称对荧光双酚基硼螯合物致手性影响的研究。
研究和讨论了由对称点群定义的分子对称性对简单荧光硼螯合物(BODIPY和相关的BOPHY类似物)的共色行为(电子圆二色性,特别是圆偏振发光)的显著影响。结果表明,通过D3手性对称基团增加染料的对称性是提高BODIPY染料及相关发射体左右圆偏振光差发射水平的可行设计选择,且对称性对染料的影响要大于干扰作用的非手性发色团的手性基团数量的影响。
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