Crystal structures of di­bromido­{N-[(pyridin-2-yl-κN)methyl­idene]picolinohydrazide-κ2N′,O}cadmium methanol monosolvate and di­iodido{N-[(pyridin-2-yl-κN)methyl­idene]picolinohydrazide-κ2N′,O}cadmium

Acta Crystallographica Section E: Crystallographic Communications

Atio?lu, Z.¹  Kristoffersen, K.A.²  Görbitz, C.H.²  Akkurt, M.³  Krautscheid, H.⁴  Khandar, A.A.⁵  Afkhami, F.A.⁵ 

[1] ?lke Education and Health Foundation, Cappadocia Vocational College, The Medical Imaging Techniques Program, 50420 Mustafapa?a, Ürgüp, Nev?ehir, Turkey;Department of Chemistry, University of Oslo, PO Box 1033 Blindern, N-0315 Oslo, Norway;Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey;Universität Leipzig, Fakultätfür Chemie und Mineralogie, Johannisallee 29, D-04103 Leipzig, Germany;Young Researchers and Elite Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran

关键词: CRYSTAL STRUCTURE;    HYDRAZONE: TRIDENTATE LIGAND;    CADMIUM;    BROMIDE;    IODIDE;    HYDROGEN BONDING;   

DOI  :  10.1107/S2056989017005308

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The title compounds, [CdBr2(C12H10N4O)]·CH3OH, (I), and [CdI2(C12H10N4O)], (II), are cadmium bromide and cadmium iodide complexes of the ligand (E)-N′-(pyridin-2-yl­methyl­ene)picolinohydrazide. Complex (I) crystallizes as the methanol monosolvate. In both compounds, the Cd2+ cation is ligated by one O atom and two N atoms of the tridentate ligand, and by two bromide anions forming a Br2N2O penta­coordination sphere for (I), and by two iodide anions forming an I2N2O penta­coordination sphere for (II), both with a distorted square-pyramidal geometry. In the crystal of complex (I), mol­ecules are linked by pairs of N—H⋯O and O—H⋯Br hydrogen bonds, involving the solvent mol­ecule, forming dimeric units, which are linked by C—H⋯Br hydrogen bonds forming layers parallel to (101). In the crystal of complex (II), mol­ecules are linked by N—H⋯I hydrogen bonds, forming chains propagating along [010]. In complex (II), measured at room temperature, the two iodide anions are each disordered over two sites; the refined occupancy ratio is 0.75 (2):0.25 (2).

【 授权许可】

CC BY