Кurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia.
Molecules. 2021 Mar 13;26(6):1583. doi: 10.3390/molecules26061583.
Multiple supramolecular functionalities of cyclic α-alkoxy tellurium-trihalides (including Te---O, Te---X (X = Br, I) and Te---π(C=C) supramolecular synthons) afford rich crystal packing possibilities, which consequently results in polymorphism or Z' > 1 crystal structures. Example of three crystal forms of cyclohexyl-ethoxy-tellurium-trihalides, one of which combines the packing of two others, affords a unique model to observe the at the early stages of crystallization, when find themself at a carrefour between the evolutionally close routes, but fail to choose between two energetically close packing patterns, so taking the "middle path", which incorporates both of them (and results in two crystallographically independent molecules). In general, this allows a better understanding of the existing structures, and an instrument to search for the new polymorphic forms.
环状α-烷氧基碲三卤化物(包括 Te---O、Te---X(X=Br、I)和 Te---π(C=C)超分子合成子)的多种超分子功能提供了丰富的晶体堆积可能性,从而导致了多晶型或 Z'>1 晶体结构。环己基乙氧基碲三卤化物的三种晶型的例子,其中一种结合了另外两种的堆积方式,提供了一个独特的模型,可以观察到在结晶的早期阶段,当 发现自己处于进化上接近的两条途径的十字路口时,但无法在两种能量上接近的堆积模式之间进行选择,因此采取了“中间道路”,将两者都包含在内(并导致两个结晶学上独立的分子)。总的来说,这可以更好地理解现有的结构,并为寻找新的多晶型形式提供工具。