链状聚[1,3-二苄基苯并咪唑鎓[[氯汞(II)]-二-μ-氯]]的晶体结构
Crystal structure of catena-poly[1,3-di-benzyl-benzimidazolium [[chlorido-mercurate(II)]-di-μ-chlorido]].
作者信息
Bouchouit Mehdi, Bouraiou Abdelmalek, Bouacida Sofiane, Merazig Hocine, Belfaitah Ali, Bahnous Mebarek
机构信息
Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, CHEMS, Université Frères Montouri Constantine, 25000, Algeria.
Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, CHEMS, Université Frères Montouri Constantine, 25000, Algeria; Département Sciences de la Matière, Faculté des Sciences Exactes et Sciences de la Nature et de la Vie, Université Oum El Bouaghi, Algeria.
出版信息
Acta Crystallogr E Crystallogr Commun. 2015 Dec 12;71(Pt 12):m255-6. doi: 10.1107/S2056989015023427. eCollection 2015 Dec 1.
The asymmetric unit of the polymeric title compound, {(C21H19N2)[HgCl3]} n , comprises one-half of the cationic mol-ecule, the other half being generated by application of twofold rotation symmetry, one Hg and two Cl atoms. The Hg(II) atom, lying on a twofold rotation axis, exhibits a distorted triangular coordination environment and is surrounded by three Cl atoms with Hg-Cl distances in the range 2.359 (2)-2.4754 (13) Å. Two additional longer distances [Hg⋯Cl = 3.104 (14) Å] lead to the formation of polymeric HgCl1/1Cl4/2 chains extending along [001]. The crystal packing can be described by cationic layers alternating parallel to (-110) with the anionic chains located between the layers. The packing is consolidated by π-π stacking inter-actions between the benzene rings of the central benzimidazole entities, with centroid-to-centroid distances of 3.643 (3) Å.
聚合标题化合物{(C₂₁H₁₉N₂)[HgCl₃]}ₙ的不对称单元包含阳离子分子的一半，另一半通过二次旋转对称性生成，还有一个Hg原子和两个Cl原子。位于二次旋转轴上的Hg(II)原子呈现出扭曲的三角配位环境，被三个Cl原子包围，Hg-Cl键长在2.359(2) - 2.4754(13) Å范围内。另外两个较长的距离[Hg⋯Cl = 3.104(14) Å]导致形成沿[001]方向延伸的聚合HgCl₁/₁Cl₄/₂链。晶体堆积可以描述为阳离子层平行于(-110)交替排列，阴离子链位于层之间。堆积通过中心苯并咪唑实体的苯环之间的π-π堆积相互作用得以巩固，质心到质心的距离为3.643(3) Å。
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