增强希夫碱二苯基硼和 9-硼芴-9-基配合物的圆极化发光亮度

IF 3 4区化学 Q3 CHEMISTRY, PHYSICAL

ChemPhotoChem Pub Date : 2024-09-10 DOI:10.1002/cptc.202400265

Masahiro Ikeshita, Shinya Watanabe, Taichi Oka, Ayumu Kuroda, Seika Suzuki, Daiya Suzuki, Yoshitane Imai, Takashi Tsuno

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引用次数: 0

摘要

研究人员合成了一系列带有手性希夫碱配体的二苯基硼和 9-硼芴-9-基配合物，并利用核磁共振光谱对其进行了表征。X 射线衍射分析表明，它们的硼中心呈四面体配位几何形状。虽然以水杨醛亚胺为骨架的硼络合物显示出微弱的圆极化发光（CPL），但通过希夫碱配体的π扩展，CPL亮度（BCPL）增强了 9 倍以上。为了进一步了解它们的发光特性，我们进行了时间分辨发射衰减分析和基于密度泛函理论（DFT）的理论计算。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Enhancement of Circularly Polarized Luminescence Brightness of Schiff‐base Diphenylboron and 9‐Borafluoren‐9‐yl Complexes

A series of diphenylboron and 9‐borafluoren‐9‐yl complexes with chiral Schiff‐base ligands was synthesized and characterized by NMR spectroscopy. X‐ray diffraction analysis revealed that their boron centers were adapted to tetrahedral coordination geometry. Although boron complexes with salicylideneimine backbones exhibited a weak circularly polarized luminescence (CPL), the CPL brightness (BCPL) was enhanced more than 9‐fold by the π‐extension of the Schiff base ligands. Time‐resolved emission decay analysis and theoretical calculations based on density functional theory (DFT) were conducted to further understand their luminescent properties.

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来源期刊

ChemPhotoChem Chemistry-Physical and Theoretical Chemistry

CiteScore

5.80

自引率

5.40%

发文量

165

期刊介绍：