Crystal structure and Hirshfeld surface analysis of hexa­kis­(μ-benzoato-κ2O:O′)bis­(pyridine-3-carbo­nitrile-κN1)trizinc(II)

Acta Crystallographica Section E: Crystallographic Communications

Ö¹  kelek, T.¹  zbek, E.²  Sertç²  Hö³ 

[1] Department of Chemical Engineering, Kafkas University, 36100 Kars, Turkey;Department of Chemistry, Kafkas University, 36100 Kars, Turkey;Department of Physics, Hacettepe University, 06800 Beytepe, Ankara, Turkey

关键词: CRYSTAL STRUCTURE;    ZINC(II);    TRANSITION METAL COMPLEXES OF BENZOIC ACID DERIVATIVES;   

DOI  :  10.1107/S2056989017016899

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The asymmetric unit of the title complex, [Zn3(C7H5O2)6(C6H4N2)2], contains one half of the complex mol­ecule, i.e. one and a half ZnII cations, three benzoate (Bnz) and one pyridine-3-carbo­nitrile (Cpy) mol­ecule; the Bnz anions act as bidentate ligands through the carboxyl­ate O atoms, while the Cpy ligand acts as a monodentate N(pyridine)-bonding ligand. The complete centrosymmetric trinuclear complex thus comprises a linear array of three ZnII cations. The central ZnII cation shows an octa­hedral coordination and is bridged to each of the terminal ZnII cations by three Bnz anions. By additional coordination of the CPy ligand, the terminal ZnII cations adopt a trigonal–pyramidal coordination environment. In the crystal, the Bnz anions link to the Cpy N atoms via weak C—H⋯N hydrogen bonds, forming a two-dimensional network. C—H⋯π and π–π inter­actions [between the benzene and pyridine rings of adjacent mol­ecules with an inter­centroid distance of 3.850 (4) Å] help to consolidate a three-dimensional architecture. The Hirshfeld surface analysis confirms the role of H-atom contacts in establishing the packing.

【 授权许可】

CC BY