Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 3 (March 2013)


metal-organic compounds



rz5039 scheme

Acta Cryst. (2013). E69, m132    [ doi:10.1107/S1600536813002985 ]

4,4'-(Ethene-1,2-diyl)dipyridinium 4-[2-(pyridin-4-yl)ethenyl]pyridinium octacyanidomolybdate(V) tetrahydrate

X.-Z. Yang, A.-Y. Hu and A.-H. Yuan

Abstract: The crystal structure of the title compound, (C12H12N2)(C12H11N2)[Mo(CN)8]·4H2O, consists of 4,4'-(ethene-1,2-diyl)dipyridinium and 4-[2-(pyridin-4-yl)ethenyl]pyridinium cations disordered over the same site, an [Mo(CN)8]3- anion and four water molecules of crystallization. The eight-coordinate [Mo(CN)8]3- unit exhibits a slightly distorted square-antiprismatic geometry. In the structure, the cations (crystallographic symmetry, 2) and anions (crystallographic symmetry, 222) are arranged alternately by N-H...O and O-H...N hydrogen bonds, forming layers parallel to the bc plane. These layers are further linked through O-H...N hydrogen bonds, generating a three-dimensional supramolecular network.


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