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Synthesis and Crystal Structure of Bis (N,N,N',N'-tetramethylethylendiammonium) Octaiodo Pentachloroantimonate (III)

机译:双(N,N,N',N'-四甲基乙基endiummmonium)Octaiodo五氯锑酸酯的合成和晶体结构

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The synthesis and Crystal structure are given for the bis (N,N,N',N'-tetramethylethylendiammonium) octaiodo pentachloroantimonate (III) salt. An X-ray investigation has shown that the title compound crystallizes in a monoclinic system, space group P21/m with the following lattice parameters a = 9.786(2) ?, b = 14.024(5) ?, c = 14.336(3) ?, β = 91.35(2)o and Z = 2. The structure was solved from 3085 independent reflections with R_1 = 0.0402 and wR_2 = 0.0952 and refined with 152 parameters. The structure shows a layer arrangement perpendicular to the b-axis: planes of [SbCl_5]~(2-), I_3~- and I_5~- anions alternateith planes of [(CH_2)_2(NH(CH_3)_2)_2]~(2+) cations. The [SbCl_5]~(2-) square pyramids present an active lone electron pair (LEP) on the Sb atoms and they are interconnected by means of N-H···Cl hydrogen bond originating from [(CH_2)_2(NH(CH_3)_2)_2]~(2+) entities. The polyiodides (I_3~- and I_5~-) anions form a planer zigzag polymeric chains via I···I linking interactions. These chains are linked to the [SbCl_5]~(2-) anions by a long range contact
机译:给出了双(N,N,N',N'-四甲基乙基endiummmonium)十溴代五氯锑酸盐(III)盐的合成和晶体结构。 X-射线研究表明,标题化合物在单斜晶系空间群P21 / m中结晶,其晶格参数为a = 9.786(2)θ,b = 14.024(5)θ,c = 14.336(3)θ。 ,β= 91.35(2)o,Z =2。该结构是根据R_1 = 0.0402和wR_2 = 0.0952的3085个独立反射进行求解的,并使用152个参数进行了改进。该结构显示了垂直于b轴的层排列:[SbCl_5]〜(2-),I_3〜-和I_5〜-阴离子的交替平面为[(CH_2)_2(NH(CH_3)_2)_2]〜的平面)。 (2+)个阳离子。 [SbCl_5]〜(2-)方金字塔在Sb原子上存在一个活动的孤电子对(LEP),它们通过源自[[CH_2] _2(NH(CH_3) _2)_2]〜(2+)个实体。聚碘离子(I_3〜-和I_5〜-)通过I··I连接相互作用形成平面锯齿形聚合物链。这些链通过长距离接触与[SbCl_5]〜(2-)阴离子连接

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