封面特写：4-Bromo-2,7-Di-Tert-Butyl- 9-Methoxypyrene 的颜色多态性和室温磷光（ChemPhysChem 18/2024）

IF 2.3 3区化学 Q3 CHEMISTRY, PHYSICAL

Chemphyschem Pub Date : 2024-09-16 DOI:10.1002/cphc.202481804

Dr. Olaf W. Morawski, Jerzy Karpiuk, Dr. Marek Grzybowski

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引用次数: 0

摘要

4-bromo-2,7-di-tert-butyl-9-methoxypyrene 两种不同晶体的颜色多态性和不同的光致发光光谱反映了分子间相互作用对化合物填料的强烈依赖性，从而导致电子状态能量和光物理受晶体结构影响而发生显著变化。降低第一激发单线态使其脱离三线态流形，并降低系统间交叉率，因此只能在一种多晶体中观察到室温磷光。更多信息请参阅 O. W. Morawski, J. Karpp 的研究文章。Morawski, J. Karpiuk 和 M. Morawski 的研究文章中（DOI: 10.1002/cphc.202400457）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Cover Feature: Color Polymorphism and Room Temperature Phosphorescence of 4-Bromo-2,7-Di-Tert-Butyl- 9-Methoxypyrene (ChemPhysChem 18/2024)

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Cover Feature: Color Polymorphism and Room Temperature Phosphorescence of 4-Bromo-2,7-Di-Tert-Butyl- 9-Methoxypyrene (ChemPhysChem 18/2024)

Color polymorphism and the dissimilar photoluminescence spectra of two different crystals of 4-bromo-2,7-di-tert-butyl-9-methoxypyrene reflect the strong dependence of intermolecular interactions on the compound packing, which results in a significant change in electronic state energies and photophysics affected by the crystal structure. Lowering the first excited singlet state detunes it from the triplet manifold and reduces the intersystem crossing rate so that room-temperature phosphorescence is observed for one polymorph only. More information can be found in the Research Article by O. W. Morawski, J. Karpiuk and M. Morawski (DOI: 10.1002/cphc.202400457).

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来源期刊

Chemphyschem 化学-物理：原子、分子和化学物理

CiteScore

4.60

自引率

3.40%

发文量

425

审稿时长

1.1 months

期刊介绍： ChemPhysChem is one of the leading chemistry/physics interdisciplinary journals (ISI Impact Factor 2018: 3.077) for physical chemistry and chemical physics. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies. ChemPhysChem is an international source for important primary and critical secondary information across the whole field of physical chemistry and chemical physics. It integrates this wide and flourishing field ranging from Solid State and Soft-Matter Research, Electro- and Photochemistry, Femtochemistry and Nanotechnology, Complex Systems, Single-Molecule Research, Clusters and Colloids, Catalysis and Surface Science, Biophysics and Physical Biochemistry, Atmospheric and Environmental Chemistry, and many more topics. ChemPhysChem is peer-reviewed.