...
首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >A cinnamaldehyde Schiff base of S-(4-methyl­benz­yl) di­thio­carbazate: crystal structure, Hirshfeld surface analysis and computational study
【24h】

A cinnamaldehyde Schiff base of S-(4-methyl­benz­yl) di­thio­carbazate: crystal structure, Hirshfeld surface analysis and computational study

机译:S-(4-甲基苄基)二硫代氨基甲酸酯的肉桂醛席夫碱:晶体结构,Hirshfeld表面分析和计算研究

获取原文
           

摘要

The title di­thio­carbazate ester (I), C18H18N2S2 [systematic name: (E)-4-methyl­benzyl 2-[(E)-3-phenyl­allyl­idene]hydrazinecarbodi­thio­ate, comprises an almost planar central CN2S2 residue [r.m.s. deviation = 0.0131 Å]. The methyl­ene(tolyl-4) group forms a dihedral angle of 72.25 (4)° with the best plane through the remaining non-hydrogen atoms [r.m.s. deviation = 0.0586 Å] so the mol­ecule approximates mirror symmetry with the 4-tolyl group bis­ected by the plane. The configuration about both double bonds in the N—N=C—C=C chain is E; the chain has an all trans conformation. In the crystal, eight-membered centrosymmetric thio­amide synthons, {⋯HNCS}2, are formed via N—H⋯S(thione) hydrogen bonds. Connections between the dimers via C—H⋯π inter­actions lead to a three-dimensional architecture. A Hirshfeld surface analysis shows that (I) possesses an inter­action profile similar to that of a closely related analogue with an S-bound benzyl substituent, (II). Computational chemistry indicates the dimeric species of (II) connected via N—H⋯S hydrogen bonds is about 0.94 kcal mol−1 more stable than that in (I).
机译:标题二硫代氨基甲酸酯(I),C 18 H 18 N 2 S 2 [系统名称:(E)-4-甲基苄基2-[((E)-3-苯基亚烷基]肼基]碳二硫代酸酯,包含几乎平面的CN 2 S 2中心残基。偏差= 0.0131Å]。亚甲基(甲苯基-4)与其余非氢原子的最佳平面形成72.25°(4)°的二面角[r.m.s.偏差= 0.0586Å],因此该分子与被平面平面一分为二的4-甲苯基近似镜像对称。 NN = CC = C链中两个双键的构型为E;链具有全反式构象。在晶体中,八元中心对称硫代酰胺合成子{⋯HNCS} 2是通过NHS(硫酮)氢键形成的。通过C-H⋯π相互作用的二聚体之间的连接导致了三维结构。 Hirshfeld表面分析表明,(I)具有与具有S键联的苄基取代基的密切相关类似物(II)相似的相互作用曲线。计算化学表明,通过NHS⋯氢键连接的(II)的二聚体比(I)中的稳定约0.94 kcal mol-1。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号