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Liquid-free single-crystal to single-crystal transformations in coordination polymers
Inorganic Chemistry Frontiers ( IF 7 ) Pub Date : 2017-12-20 00:00:00 , DOI: 10.1039/c7qi00724h
Wen-Wen He 1, 2, 3, 4, 5 , Shun-Li Li 6, 7, 8, 9, 10 , Ya-Qian Lan 6, 7, 8, 9, 10
Affiliation  

The design and synthesis of functional materials with desired properties is the ultimate goal for chemical pursuers. Single-crystal to single-crystal (SCSC) transformations are an important component of solid-state reactions. These transformations not only create new materials but also provide an opportunity to explore the process of forming a chemical bond, which is conducive to making function-oriented crystal synthesis a reality. In this review, we provide a broad overview of SCSC transformations that take place in polymers or metal–organic frameworks, and classify them into several groups based on their various inducing stimuli, such as UV light, loss/uptake of solvent vapor, temperature change, mechanical force and their synergic impact. Unlike other reviews, the SCSC transformations discussed in this paper are confined to transformations via an absolutely liquid-free mode (both the reactant and product are in the solid phase), while those involving liquids, in which the transformation occurs in a recrystallization manner, are strictly excluded. These dynamic processes all involve the breakage and formation of covalent or non-covalent bonds, accompanied by drastic structural rearrangement in the crystalline phase. Changes in the physical properties of these complexes resulting from SCSC transformations are also illustrated. Thanks to the regular characteristics of crystal structures before and after the reactions, the transformation processes may provide deep insights into the rational design of crystalline materials.

中文翻译:

配位聚合物中无液体的单晶至单晶转变

具有所需性能的功能材料的设计和合成是化学制造商的最终目标。单晶到单晶(SCSC)的转换是固态反应的重要组成部分。这些转变不仅创造了新材料,而且还为探索化学键形成过程提供了机会,这有助于使面向功能的晶体合成成为现实。在这篇综述中,我们提供了在聚合物或金属有机框架中发生的SCSC转换的广泛概述,并根据它们的各种诱导刺激将它们分为几类,例如紫外线,溶剂蒸汽的损失/吸收,温度变化。 ,机械力及其协同影响。与其他评论不同,本文讨论的SCSC转换仅限于转换通过绝对无液体的方式(反应物和产物均处于固相),而那些以重结晶方式发生相变的涉及液体的物质则被严格排除在外。这些动态过程都涉及共价或非共价键的断裂和形成,伴随着结晶相中剧烈的结构重排。还说明了由SCSC转换导致的这些复合物的物理性质变化。由于反应前后晶体结构的规则特性,转变过程可以提供对结晶材料合理设计的深刻见解。
更新日期:2017-12-20
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