衍射x射线闪烁揭示了1,2,3,5-四溴苯的特征晶体多晶动力学。

IF 3.9 2区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Scientific Reports Pub Date : 2025-03-24 DOI:10.1038/s41598-025-95316-z

Keegan McGehee, Koichiro Saito, Ryo Fukaya, Rie Haruki, Shunsuke Nozawa, Minghao Gao, Yuji C Sasaki, Kazuhiro Mio, Yasuo Norikane

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引用次数: 0

摘要

在这项工作中，我们报告了通过 X 射线闪烁衍射（DXB）研究 1,2,4,5-四溴苯（TBB）多晶体的结果。利用 DXB 发现，在毫秒-秒的时间尺度上，γ 相多晶体中晶格间距 d 的微妙波动比 β 相多晶体中的波动更快，从而成功地确定了它们之间的另一种不同特征。研究还发现，分子运动速率在接近相变温度时骤增，超出了典型的特征区域。这为之前关于相变温度附近各向异性晶格软化和应变累积的报道提供了更多的启示，而这正是 TBB 晶体机械响应特性的关键所在。本研究通过 DXB 对机械响应有机晶体的毫秒级晶体动力学进行了研究，也为今后研究更复杂的机械响应晶体行为提供了指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

$Diffracted X-ray blinking reveals signature crystal polymorph dynamics in 1,2,3,5-Tetrabromobenzene.$

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Diffracted X-ray blinking reveals signature crystal polymorph dynamics in 1,2,3,5-Tetrabromobenzene.

In this work we report findings on the study of 1,2,4,5-tetrabromobenzene (TBB) polymorphs by diffracted X-ray blinking (DXB). Using DXB it was found that on the ms-s time scale subtle fluctuations in the d-spacing between lattice planes occurs more rapidly in the γ-phase polymorph than in the β-phase, successfully identifying another distinct characterization between them. It was also found that the rate of molecular motion spiked near the phase transition temperature beyond the typical characteristic regions. This offers additional insight on previous reports of anisotropic lattice softening and strain accumulation near the phase transition temperature that are key to the mechanically responsive properties of TBB crystals. The present study on ms-s crystalline dynamics by DXB for mechanically responsive organic crystals also serves as a guideline for future study of more complicated mechanically responsive crystal behaviors.

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来源期刊

Scientific Reports Natural Science Disciplines-

CiteScore

7.50

自引率

4.30%

发文量

19567

审稿时长

3.9 months

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