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Circularly Polarized Luminescence from Chiral Spiro Molecules: Synthesis and Optical Properties of 10,10′-Spirobi(indeno[1,2-b][1]benzothiophene) Derivatives
Organic Letters ( IF 4.9 ) Pub Date : 2017-09-19 00:00:00 , DOI: 10.1021/acs.orglett.7b02337
Ko Takase 1 , Keiichi Noguchi 1 , Koji Nakano 1
Affiliation  

Chiral spiro polycyclic aromatic compounds with thiophene and/or thiophene S,S-dioxide units were synthesized as a new family of circularly polarized luminescence (CPL) materials. Oxidation of the thiophene unit to its S,S-dioxide provided significant changes in photophysical properties such as much higher fluorescence quantum yield and positive solvatochromism in photoluminescence spectra. Density functional theory calculations qualitatively demonstrated the observed absorption properties. The prepared chiral spiro compounds exhibit intense CPL signals with a relatively large dissymmetry factor for small organic molecules.

中文翻译:

手性螺分子的圆偏振发光:10,10'-螺双(茚并[1,2- b ] [1]苯并噻吩)衍生物的合成及光学性质

合成了具有噻吩和/或噻吩SS-二氧化物单元的手性螺环多环芳族化合物,作为新的圆偏振发光(CPL)材料系列。噻吩单元被氧化成SS-二氧化物会显着改变光物理性质,例如更高的荧光量子产率和光致发光光谱中的正溶剂化色度。密度泛函理论计算定性地证明了观察到的吸收特性。制备的手性螺环化合物对小有机分子表现出强烈的CPL信号,并且具有相对较大的不对称因子。
更新日期:2017-09-19
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