辐射速率常数对融硼偶氮苯配合物结晶诱导发射增强的贡献

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Dalton Transactions Pub Date : 2024-11-15 DOI:10.1039/d4dt02458c

Masashi Nakamura, Masayuki Gon, Kazuo Tanaka

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引用次数: 0

摘要

对聚集状态下发射增强的分析是通过重点关注分子间相互作用对非辐射过程的抑制来进行的。另一方面，尽管辐射过程对改善发射有重要作用，但很难评估辐射过程的贡献。本文评估了辐射过程对结晶诱导发射增强（CIEE）的贡献。通过比较孤立态和结晶态在 77 K 时的光学特性，最大限度地减少结构松弛，阐明了源自晶体中分子间相互作用的辐射过程加速现象。因此，实验证明，即使没有明显的分子间电子相互作用，有机晶体中的大折射率也会主要促进 CIEE 的辐射过程。

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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Contribution of Radiative Rate Constants to Crystallization-Induced Emission Enhancement in Boron-Fused Azobenzene Complexes

Analysis of emission enhancement in an aggregated state has been developed by focusing on suppression of nonradiative processes by intermolecular interactions. On the other hand, it is difficult to evaluate contribution of radiative processes despite its significant role in improving emission. Herein, the contribution of radiative processes to crystallization-induced emission enhancement (CIEE) is evaluated. By comparing optical properties between isolated and crystalline states at 77 K to minimize structural relaxation, acceleration phenomena of the radiative process originating from the intermolecular interactions in crystal are clarified. Consequently, it is experimentally proved that a large refractive index in an organic crystal mainly promotes the radiative processes in CIEE even without significant intermolecular electronic interactions.

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来源期刊

Dalton Transactions 化学-无机化学与核化学

CiteScore

6.60

自引率

7.50%

发文量

1832

审稿时长

1.5 months

期刊介绍： Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.