Chérif Ichraf, Abdelhak Jawher, Zid Mohamed Faouzi, Driss Ahmed
Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, Université de Tunis El Manar, 2092 Manar II Tunis, Tunisia.
Acta Crystallogr Sect E Struct Rep Online. 2012 Jun 1;68(Pt 6):m824-5. doi: 10.1107/S1600536812023392. Epub 2012 May 26.
In the crystal structure of the title compound, (C(5)H(6)ClN(2))[Cr(C(2)O(4))(2)(H(2)O)(2)]·1.5H(2)O, the Cr(III) atom adopts a distorted octa-hedral geometry being coordinated by two O atoms of two cis water mol-ecules and four O atoms from two chelating oxalate dianions. The cis-diaqua-dioxalatochromate(III) anions, 2-amino-5-chloro-pyridinium cations and uncoordinated water mol-ecules are linked into a three-dimensional supra-molecular array by O-H⋯O and N-H⋯O hydrogen-bonding inter-actions. One of the two independent lattice water molecules is situated on a twofold rotation axis.
在标题化合物（C₅H₆ClN₂）[Cr(C₂O₄)₂(H₂O)₂]·1.5H₂O的晶体结构中，Cr(III)原子采用扭曲的八面体几何构型，由两个顺式水分子的两个O原子和来自两个螯合草酸二阴离子的四个O原子配位。顺式二水二草酸铬(III)阴离子、2-氨基-5-氯吡啶鎓阳离子和未配位的水分子通过O-H⋯O和N-H⋯O氢键相互作用连接成三维超分子阵列。两个独立的晶格水分子之一位于二重旋转轴上。
