Mechano-Responsive Luminescence via Crystal-to-Crystal Phase Transitions between Chiral and Non-Chiral Space Groups,Journal of the American Chemical Society

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Mechano-Responsive Luminescence via Crystal-to-Crystal Phase Transitions between Chiral and Non-Chiral Space Groups
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2017-05-23 00:00:00 , DOI: 10.1021/jacs.7b04073
Mingoo Jin ₁ , Tomohiro Seki ₁ , Hajime Ito ₁

Affiliation

Herein, a novel mechano-responsive luminescent (MRL) material based on crystal-to-crystal phase transitions between crystals of a chiral and those of a centrosymmetric space group, accompanied by a change of emission properties, is described. Initially, a gold complex containing a biphenyl moiety, which exhibits an achiral structure in solution, afforded an orange-emitting amorphous phase together with a viscous isotropic oil after evaporation of the solvent. Upon pricking, the orange-emitting oil spontaneously crystallized either in a centrosymmetric or in a chiral space group while simultaneously changing the emission properties. Remarkably, grinding the chiral crystals induced a solid-state phase transition to the achiral crystals under concomitant changes of the emission properties.

中文翻译：

通过手性和非手性空间群之间的晶体到晶体相变的机械响应发光。

在此，描述了一种新型的机械响应发光（MRL）材料，该材料基于手性晶体和中心对称性空间基团的晶体之间的晶体-晶体相变，并伴有发射性质的变化。最初，在溶剂蒸发后，含有联苯部分的金络合物在溶液中表现出非手性结构，该化合物与粘性的各向同性油一起提供了发橙色光的无定形相。刺刺时，橙色发光油在中心对称或手性空间群中自发结晶，同时改变了发射特性。值得注意的是，在伴随发射特性变化的情况下，研磨手性晶体会导致固态相转变为非手性晶体。

更新日期：2017-05-27

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