Crystal structure of tetra­aqua­[2-(pyridin-2-yl)-1H-imidazole-κ2N2,N3]iron(II) sulfate

Acta Crystallographica Section E: Crystallographic Communications

Novaković²  Setifi, Z.⁴  Francuski, B.M.⁹  Setifi, F.^1,10  , S.B.^1,11  Merazig, H.^1,12 

[1] Constantine 1, Constantine 25000, Algeria;Ferhat Abbas Séde Recherche de Chimie de l'Environnement et MoléLaboratoire de Chimie, IngéUnitéVinča Institute of Nuclear Sciences, Laboratory of Theoretical Physics and Condensed Matter Physics, PO Box 522, University of Belgrade, 11001 Belgrade, Serbia;culaire Structurale (CHEMS), Universitéculaire et Nanostructures (LCIMN), Universiténierie Molétif 1, Sétif 19000, Algeria

关键词: CRYSTAL STRUCTURE;    2-(PYRIDIN-2-YL)-1H-IMIDAZOLE;    IRON(II) COMPLEX;    HYDROGEN BONDING;    C-H...[PI] INTERACTIONS;    [PI]-[PI] INTERACTIONS;   

DOI  :  10.1107/S2056989015004417

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

In the title compound, [Fe(C8H7N3)(H2O)4]SO4, the central FeII ion is octa­hedrally coordinated by two N atoms from the bidentate 2-(pyridin-2-yl)-1H-imidazole ligand and by four O atoms of the aqua ligands. The largest deviation from the ideal octa­hedral geometry is reflected by the small N—Fe—N bite angle of 76.0 (1)°. The Fe—N coordination bonds have markedly different lengths [2.1361 (17) and 2.243 (2) Å], with the shorter one to the pyrimidine N atom. The four Fe—O coordination bond lengths vary from 2.1191 (18) to 2.1340 (17) Å. In the crystal, the cations and anions are arranged by means of medium-strength O—H⋯O hydrogen bonds into layers parallel to the ab plane. Neighbouring layers further inter­connect by N—H⋯O hydrogen bonds involving the imidazole fragment as donor group to one sulfate O atom as an acceptor. The resulting three-dimensional network is consolidated by C—H⋯O, C—H⋯π and π–π inter­actions.

【 授权许可】

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