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Journal of Chemical Crystallography

, Volume 40, Issue 9, pp 721–725 | Cite as

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

  • H. Kharrat
  • S. Kamoun
  • H. F. Ayedi
  • A. Driss
Original Paper

Abstract

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) Ǻ, b = 14.024(5) Ǻ, c = 14.336(3) Ǻ, β = 91.35(2)° 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 \( \vec{b} \)-axis: planes of [SbCl5]2−, I3 and I5 anions alternate with planes of [(CH2)2(NH(CH3)2)2]2+ cations. The [SbCl5]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 [(CH2)2(NH(CH3)2)2]2+ entities. The polyiodides (I3 and I5 ) anions form a planer zigzag polymeric chains via I···I linking interactions. These chains are linked to the [SbCl5]2− anions by a long range contact.

Index Abstract

Built for [(CH2)2(NH(CH3)2)2]2+ entities, [SbCl5]2−, I3 and I5 anions.

Keywords

Crystal structure Chloroantimonates (III) Polyiodides 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Unité de Recherche de Chimie Industrielle et Matériaux, ENISSfaxTunisia
  2. 2.Laboratoire de Matériaux et Cristallochimie, Faculté des SciencesUniversité de Tunis-El ManarTunisTunisia

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