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1 Polish Journal of Chemistry

1 1999

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The crystal structure of bis(ethylammonium) pentachloroantimonate(III)-ethylammonium chloride (C2H5NH3)2SbCl5 (C2H5NH3)Cl at 295 and 90 K : On the deformation of the octahedral coordination of SbIII

Bujak M., Zaleski J.

Polish Journal of Chemistry

1999

vol. 73 nr 5

773-782

Bis(ethylammonium) pentachloroantimonate(III)-ethylamonium chloride belongs to alkylammonium chloroantimonates(III). The anionic sublattice of (C2H5NH3)2SbCl5 × (C2H5NH3)cl is built of isolated Sb2Cl10 4- units composed of two SbCl-36 octahedra, connected by edge and two single chlorine Cl- ions. There are three crystallographically non-equivalent ethylammonium cations, two of them are disordered at room temperature and all of them are ordered at 90 K. The disorder is realized by two positions for carbon atoms. Ethylammonium cations are connected to the anionic sublattice by N-H…Cl hydrogen bonds. The influence of temperature and hydrogen bonds together with electrostatic interactions on the deformation of the octahedral coordination of SbIII is discussed.