Chérif Ichraf, Zid Mohamed Faouzi, El-Ghozzi Malika, Avignant Daniel
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 Jul 1;68(Pt 7):m900-1. doi: 10.1107/S1600536812025020. Epub 2012 Jun 13.
In the structure of the title compound, (C₅H₇N₂)[Cr(C₂O₄)₂(H₂O)₂], two crystallographically independent formula units are present. Both chromium atoms are six-coordinated in a distorted octa-hedral geometry by two chelating equatorial oxalato ligands and two axial water mol-ecules. The [Cr(C₂O₄)₂(H₂O)₂]⁻ anions and C₅H₇N₂ ⁺ cations are linked through a complex three-dimensional hydrogen-bonding network consisting of N-H⋯O and O-H⋯O inter-actions.
在标题化合物(C₅H₇N₂)[Cr(C₂O₄)₂(H₂O)₂]的结构中,存在两个晶体学独立的化学式单元。两个铬原子均通过两个螯合的赤道面草酸根配体和两个轴向水分子以扭曲的八面体几何构型进行六配位。[Cr(C₂O₄)₂(H₂O)₂]⁻阴离子和C₅H₇N₂ ⁺阳离子通过由N-H⋯O和O-H⋯O相互作用组成的复杂三维氢键网络相连。