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International Union of Crystallography, Acta Crystallographica Section E: Crystallographic Communications, 2(72), p. 124-127, 2016

DOI: 10.1107/s2056989015024524

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Crystal structure of an organic–inorganic supramolecular salt based on a 4,4′-methylenebis(3,5-dimethyl-1H-pyrazol-2-ium) cation and a β-octamolybdate anion

Journal article published in 2016 by Tatiana R. Amarante ORCID, Isabel S. Gonçalves ORCID, Filipe A. Almeida Paz
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The asymmetric unit of the title compound, bis[4,4′-methylenebis(3,5-dimethyl-1H-pyrazol-2-ium)] β-octamolybdate, (C11H18N4)2[Mo8O26] or (H4mbdpz)2[Mo8O26], is composed of an H4mbdpz2+cation and half of the β-octamolybdate anion which is completed by inversion symmetry. The organic molecular units are engaged in a series of N—H...O hydrogen bonds with neighbouring anions, with N...O distances and N—H...O angles in the ranges 2.730 (2)–2.941 (2) Å and 122–166°, respectively. These interactions lead to the formation of a supramolecular two-dimensional network parallel to the (010) plane.