Tetra­pyridinium μ-oxido-di-μ-sulfato-bis­[chloridodioxidomolybdate(VI)]

The title salt, (C(5)H(6)N)(4)[Mo(2)Cl(2)O(5)(SO(4))(2)], comprises four pyridinium cations for each [(MoClO(2))(2)(μ-O)(μ-SO(4))(2)](4−) anionic unit. The asymmetric unit consists of three aggregates of the empirical formula. The tetra­anionic bimetallic molybdenum(VI) cluster is unprecedented and...

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Detalles Bibliográficos
Autores principales: Fernandes, José A., Gomes, Ana C., Figueiredo, Sónia, Gago, Sandra, Lopes, André D., Pillinger, Martyn, Ribeiro-Claro, Paulo J. A., Gonçalves, Isabel S., Almeida Paz, Filipe A.
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2010
Materias:
Metal-Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3007277/
https://www.ncbi.nlm.nih.gov/pubmed/21588086
http://dx.doi.org/10.1107/S1600536810028254
Descripción
Sumario:The title salt, (C(5)H(6)N)(4)[Mo(2)Cl(2)O(5)(SO(4))(2)], comprises four pyridinium cations for each [(MoClO(2))(2)(μ-O)(μ-SO(4))(2)](4−) anionic unit. The asymmetric unit consists of three aggregates of the empirical formula. The tetra­anionic bimetallic molybdenum(VI) cluster is unprecedented and contains two sulfate and one oxide bridges. This structure constitutes the first example of a non-polymeric compound with terminal oxide, sulfate and halide ligands bonded to the same metal. The hydrogen bonds connecting the pyridinium cations to the molybdenum clusters are diverse, varying from strong and directional interactions to bifurcated bonds with a subsequent loss of directionality.

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