Trifa Chahrazed, Mokhtari Samia, Bouacida Sofiane, Boudaren Chaouki, Boudraa Mhamed, Merazig Hocine
Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, CHEMS, Université des frères Mentouri Constantine 1, 25000, Algeria.
Acta Crystallogr C Struct Chem. 2017 May 1;73(Pt 5):369-375. doi: 10.1107/S2053229617003850. Epub 2017 Apr 5.
Coordination of the anions of benzenecarboxylic acids with metal cations leads to coordination polymers with various structural features. Very few examples of strontium-based structures have been reported. A new three-dimensional coordination polymer, namely poly[aqua(μ-benzene-1,2,4,5-tetracarboxylato)distrontium(II)], [Sr(CHO)(HO)], has been synthesized under hydrothermal conditions and characterized by thermal analysis, vibrational spectroscopy (Raman and IR), single-crystal X-ray diffraction and powder X-ray diffraction. The coordination geometries around the two independent Sr ions can be described as a distorted dodecahedron and a distorted monocapped square antiprism. The compound features a three-dimensional structure containing inorganic motifs, with two-dimensional layers connected through organic linkers, and possesses a topologic structure of a binodal (6,12) connected alb net with the Schläfli symbol {4}{4.6}. The final product of thermal decomposition is strontium oxide (SrO).
苯甲酸阴离子与金属阳离子的配位作用会生成具有各种结构特征的配位聚合物。基于锶的结构的实例报道很少。一种新的三维配位聚合物，即聚[水合（μ-苯-1,2,4,5-四羧基）二锶（II）]，[Sr₂(C₆O₆)(H₂O)₄]，已在水热条件下合成，并通过热分析、振动光谱（拉曼和红外）、单晶X射线衍射和粉末X射线衍射进行了表征。两个独立的Sr离子周围的配位几何形状可描述为扭曲的十二面体和扭曲的单帽方反棱柱。该化合物具有包含无机 motif 的三维结构，二维层通过有机连接体相连，并且具有拓扑结构为双节点（6,12）连接的alb网，施莱夫利符号为{4}{4.6}。热分解的最终产物是氧化锶（SrO）。
