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Multi-colour circularly polarized luminescence properties of chiral Schiff-base boron difluoride complexes
Physical Chemistry Chemical Physics ( IF 2.9 ) Pub Date : 2022-06-13 , DOI: 10.1039/d2cp01861f
Masahiro Ikeshita 1 , Takato Suzuki 1 , Kana Matsudaira 2 , Maho Kitahara 2 , Yoshitane Imai 2 , Takashi Tsuno 1
Affiliation  

A series of chiral Schiff-base boron difluoride complexes was synthesized and their photophysical properties were examined. These complexes showed multi-colour (blue, yellow and red) photoluminescence in solution and in the solid state with good emission quantum yield (Φ) depending on the π-systems of the ligands. The chiral complexes exhibited circularly polarized luminescence (CPL) with an absolute luminescence dissymmetry factor (glum) of up to the 1.3 × 10−3 in solution and 1.9 × 10−2 in the drop-cast film state. Density functional theory (DFT) and time-dependent (TD) DFT calculations were conducted to further understand the photophysical properties.

中文翻译:

手性席夫碱二氟化硼配合物的多色圆偏振发光特性

合成了一系列手性席夫碱二氟化硼配合物,并对其光物理性质进行了研究。这些配合物在溶液和固态中显示出多色(蓝色、黄色和红色)光致发光,具有良好的发射量子产率 ( Φ ),具体取决于配体的 π 系统。手性配合物表现出圆偏振发光(CPL),其绝对发光不对称因子(g lum)在溶液中高达1.3 × 10 -3 ,在滴铸薄膜状态下高达1.9 × 10 -2 。进行密度泛函理论 (DFT) 和时间相关 (TD) DFT 计算以进一步了解光物理性质。
更新日期:2022-06-17
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