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Acta Cryst. (2014). E70, m7-m8  [ doi:10.1107/S1600536813032649 ]

Bis(hy­droxy­ammonium) hexa­chlorido­platinate(IV)-18-crown-6 (1/2)

E. Bulatov, A. Afanasenko, T. Chulkova and M. Haukka

Abstract: In the title complex, (NH3OH)2[PtCl6]·2C12H24O6, the PtIV atom is coordinated by six chloride anions in a slightly distorted octa­hedral geometry. The Pt-Cl bond lengths are comparable to those reported for other hexa­chlorido­platinate(IV) species. The hy­droxy­ammonium groups act as linkers between the [PtCl6]2- anion and the crown ether mol­ecules. The anion is linked to two hy­droxy­ammonium cations via O-H...Cl hydrogen bonds and each hy­droxy­ammonium moiety is linked to a crown ether mol­ecule by hydrogen bonds between ammonium H atoms and 18-crown-6 O atoms. The crown ether mol­ecules have the classic crown shape in which all O atoms are located in the inner part of the crown ether ring and all -CH2- groups are turned to the outside.

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