新分子配合物5,6-二氨基[1,2,5]硒代二唑[3,4-b]吡嗪c - 18冠-6

IF 1.4 4区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Structural Chemistry Pub Date : 2025-08-29 DOI:10.1134/S0022476625080013

E. A. Radiush, N. A. Semenov

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引用次数: 0

摘要

在四氢呋喃（THF）中缓慢蒸发5,6-二氰[1,2,5]硒代二唑[3,4-b]吡嗪(1)和18-冠-6(2)的溶液，得到14·23 THF2(3)分子晶体配合物。3的组成不同于1,2,5-硫代二唑衍生物与冠醚分子配合物的1:1化学计量。用单晶x射线衍射测定了3的结构。3的晶体堆积是由1的分子之间的π堆积相互作用和1和2的分子之间强烈缩短的Se⋯O接触形成的。Se⋯O触点满足碳键的几何标准。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

New Molecular Complex 5,6-Dicyano[1,2,5]Selenodiazolo[3,4-b]Pyrazine c 18-Crown-6

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New Molecular Complex 5,6-Dicyano[1,2,5]Selenodiazolo[3,4-b]Pyrazine c 18-Crown-6

Slow evaporation of a solution of 5,6-dicyano[1,2,5]selenodiazolo[3,4-b]pyrazine (1) and 18-crown-6 (2) in tetrahydrofuran (THF) yields the 1₄·2₃ THF₂ (3) molecular crystal complex. The composition of 3 differs from the 1:1 stoichiometry typical for molecular complexes of 1,2,5-chalcogenadyazole derivatives with crown ethers. The structure of 3 is determined by single crystal X-Ray diffraction. The crystal packing of 3 is formed by π-stacking interactions between the molecules of 1 and by strongly shortened Se⋯O contacts between the molecules of 1 and 2. The Se⋯O contacts meet the geometric criteria of chalcogen bonding.

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来源期刊

Journal of Structural Chemistry 化学-无机化学与核化学

CiteScore

1.60

自引率

12.50%

发文量

142

审稿时长

8.3 months

期刊介绍： Journal is an interdisciplinary publication covering all aspects of structural chemistry, including the theory of molecular structure and chemical bond; the use of physical methods to study the electronic and spatial structure of chemical species; structural features of liquids, solutions, surfaces, supramolecular systems, nano- and solid materials; and the crystal structure of solids.