一种包含中性分子、阳离子和七钼酸根阴离子的新型有机-无机杂化材料的合成与晶体结构
Synthesis and crystal structure of a new hybrid organic-inorganic material containing neutral mol-ecules, cations and hepta-molybdate anions.
作者信息
Sarr Bougar, Mbaye Abdou, Diallo Wally, Diop Cheikh Abdoul Khadir, Sidibe Mamadou, Michaud Francois
机构信息
Laboratoire de Chimie Minérale et Analytique, Département de Chimie, Faculté des Sciences et Téchniques, Université Cheikh Anta Diop, Dakar, Senegal.
Laboratoire de Chimie et de Physique des Matériaux (LCPM) de l'Université Assane Seck de Ziguinchor (UASZ), BP 523 Ziguinchor, Senegal.
出版信息
Acta Crystallogr E Crystallogr Commun. 2019 Jun 21;75(Pt 7):1001-1004. doi: 10.1107/S2056989019008454. eCollection 2019 Jul 1.
The title compound, hexa-kis-(2-methyl-1-imidazol-3-ium) hepta-molybdate 2-methyl-1-imidazole disolvate dihydrate, (CHN)[MoO]·2CHN·2HO, was prepared from 2-methyl-imidazole and ammonium hepta-molybdate tetra-hydrate in acid solution. The [MoO] hepta-molybdate cluster anion is accompanied by six protonated (CHN) 2-methyl-imidazolium cations, two neutral CHN 2-methyl-imidazole mol-ecules and two water mol-ecules of crystallization. The cluster consists of seven distorted MoO octa-hedra sharing edges or vertices. In the crystal, the components are linked by N-H⋯N, N-H⋯O, O-H⋯O, N-H⋯(O,O) and O-H⋯(O,O) hydrogen bonds, generating a three-dimensional network. Weak C-H⋯O inter-actions consolidate the packing.
标题化合物，六（2-甲基-1-咪唑-3-鎓）七钼酸2-甲基-1-咪唑二溶剂合物二水合物，(C₄H₆N₂)[Mo₇O₂₄]·2C₄H₆N₂·2H₂O，由2-甲基咪唑和四水合七钼酸铵在酸性溶液中制备而成。七钼酸根簇阴离子[Mo₇O₂₄]伴随着六个质子化的（C₄H₆N₂）2-甲基咪唑鎓阳离子、两个中性的C₄H₆N₂ 2-甲基咪唑分子和两个结晶水分子。该簇由七个扭曲的MoO₆八面体通过共享边或顶点组成。在晶体中，各组分通过N-H⋯N、N-H⋯O、O-H⋯O、N-H⋯(O,O)和O-H⋯(O,O)氢键相连，形成三维网络。弱的C-H⋯O相互作用巩固了堆积结构。
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