Adib Marwa, El Glaoui Meher, Pereira da Silva Pedro Sidonio, Ramos Silva Manuela, Ben Nasr Cherif
Acta Crystallogr Sect E Struct Rep Online. 2012 Feb 1;68(Pt 2):m175. doi: 10.1107/S1600536812001626. Epub 2012 Jan 21.
In the title compound, {(C(5)H(14)N(2))[Cd(2)Cl(6)]·H(2)O}(n), the asymmetric unit contains one piperazinediium cation, one Cd(2)Cl(6) anion and a water mol-ecule. The coordination geometries of the two Cd(2+) cations are distorted octa-hedral. Adjacent Cd(II) atoms are inter-connected alternately by paired chloride bridges, generating polymeric chains parallel to [010]. Neighbouring chains are connected by O-H⋯Cl hydrogen bonds involving the water mol-ecules, forming layers at z = n/2. The crystal packing is further stabilized by inter-molecular N-H⋯Cl and N-H⋯O hydrogen bonds, one of which is bifurcated.
在标题化合物{(C₅H₁₄N₂)[Cd₂Cl₆]·H₂O}ₙ中，不对称单元包含一个哌嗪二铵阳离子、一个[Cd₂Cl₆]²⁻阴离子和一个水分子。两个Cd²⁺阳离子的配位几何构型为扭曲八面体。相邻的Cd(II)原子通过成对的氯桥交替相连，形成平行于[010]的聚合物链。相邻的链通过涉及水分子的O—H⋯Cl氢键相连，在z = n/2处形成层。晶体堆积通过分子间的N—H⋯Cl和N—H⋯O氢键进一步稳定，其中一个是分叉的。
