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Crystal structure of bis(2-methyl-1 H -imidazol-3-ium) dihydroxidobis(oxalato-κ 2 O 1 , O 2 )stannate(IV) monohydrate

Abstract : In the structure of the hydrated title salt, (C4H7N2)(2)[Sn(C2O4)(2)(OH)(2)]center dot H2O, the asymmetric unit comprises one stannate(IV) dianion, two organic cations and one water molecule of crystallization. The [Sn(C2O4)(2)(OH)(2)](2-) dianion consists of an Sn-IV atom chelated by two oxalate anions and coordinated by two OH- ligands in a cis octahedral arrangement. Neighbouring anions are connected through O-H center dot center dot center dot O hydrogen bonds between hydroxide groups and non-coordinating oxalate O atoms into layers expanding parallel to (100). In addition, cations and anions are linked through N-H center dot center dot center dot O hydrogen bonds, and the water molecule bridges two anions with two O-H center dot center dot center dot O hydrogen bonds and is also the acceptor of an N-H center dot center dot center dot O hydrogen bond with one of the cations. Weak C-H center dot center dot O hydrogen bonds are also observed. The intricate hydrogen bonding leads to the formation of a three-dimensional network.
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https://hal-univ-bourgogne.archives-ouvertes.fr/hal-01400193
Contributeur : Icmub - Université de Bourgogne <>
Soumis le : lundi 21 novembre 2016 - 15:29:30
Dernière modification le : lundi 31 août 2020 - 16:34:04

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Mouhamadou Birame Diop, Libasse Diop, Laurent Plasseraud, Thierry Maris. Crystal structure of bis(2-methyl-1 H -imidazol-3-ium) dihydroxidobis(oxalato-κ 2 O 1 , O 2 )stannate(IV) monohydrate. Acta crystallographica. Section E, Crystallographic communications, International Union of Crystallography, 2016, 72 (3), pp.355 - 357. ⟨10.1107/S2056989016002061⟩. ⟨hal-01400193⟩

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