首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >A one-dimensional ladder-like six-coordinate cadmium polymer: catena-poly[bis[(S)-2-methylpiperazine-1,4-diium] [bis[trichloridocadmium(II)]-di-μ3-chlorido]]
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A one-dimensional ladder-like six-coordinate cadmium polymer: catena-poly[bis[(S)-2-methylpiperazine-1,4-diium] [bis[trichloridocadmium(II)]-di-μ3-chlorido]]

机译:一维阶梯状六坐标镉聚合物:链状聚[bis [(S)-2-甲基哌嗪-1,4-diium] [bis [trichloridocadmium(II)]-di-μ3-chloroido]]

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摘要

The crystal structure of the title compound {(C5H14N2)2[Cd2Cl8]}n, (I), consists of hydrogen-bonded 2-methylpiperazinediium (H2MPPA2+) cations in the presence of one-dimensional polymeric {[CdCl3(μ3-Cl)]2?}n anions. The CdII centres are hexacoordinated by three terminal chlorides and three bridging chlorides and have a slightly distorted octahedral CdCl3(μ3-Cl)3 arrangement. The alternating CdCl6 octahedra form four-membered Cd2Cl2 rings by the sharing of neighbouring Cd–Cl edges to give rise to extended one-dimensional ladder-like chains parallel to the b axis, with a Cd...Cd distance of 4.094?(2)?? and a Cd...Cd...Cd angle of 91.264?(8)°. The H2MPPA2+ cations crosslink the [CdCl3(μ3-Cl)]n chains by the formation of two N—H...Cl hydrogen bonds to each chain, giving rise to one-dimensional ladder-like H2MPPA2+–Cl2 hydrogen-bonded chains [graph set R42(14)]. The [CdCl3(μ3-Cl)]n chains are interwoven with the H2MPPA2+–Cl2 hydrogen-bonded chains, giving rise to a three-dimensional supramolecular network.
机译:标题化合物{(C5H14N2)2 [Cd2Cl8]} n,(I)的晶体结构由氢键合的2-甲基哌嗪二鎓(H2MPPA2 +)阳离子组成,存在一维聚合{[CdCl3(μ3-Cl)] ] 2?} n阴离子。 CdII中心由三个末端氯化物和三个桥接氯化物进行六配位,并且八面体CdCl3(μ3-Cl)3排列略有变形。交替的CdCl6八面体通过共享相邻的Cd-Cl边缘形成四元Cd2Cl2环,从而产生平行于b轴的扩展的一维阶梯状链,其Cd ... Cd距离为4.094?(2 )?? Cd ... Cd ... Cd角为91.264?(8)°。 H2MPPA2 +阳离子通过在每个链上形成两个N ... H ... Cl氢键使[CdCl3(μ3-Cl)] n链交联,从而形成一维梯状H2MPPA2 + -Cl2氢键链[图集R42(14)]。 [CdCl3(μ3-Cl)] n链与H2MPPA2 + –Cl2氢键链交织在一起,形成了三维超分子网络。

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