Crystal structure of poly[di­aqua­(μ-2-carb­oxy­acetato-κ3O,O′:O′′)(2-carb­oxy­acetato-κO)di-μ-chlorido-dicobalt(II)]

Acta Crystallographica Section E: Crystallographic Communications

Dénés, G.¹  Buvailo, A.²  Potaskalov, V.A.³  Merazig, H.⁴  Setifi, Z.⁵  Bouaoud, Y.⁵ 

[1] Department of General and Inorganic Chemistry, National Technical University of Ukraine, `Kyiv Polytechnic Institute', 37 Prospect Peremogy, 03056 Kiev, Ukraine;Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures (LCIMN), Université Ferhat Abbas Sétif 1, Sétif 19000, Algeria;National Taras Shevchenko University of Kyiv, Department of Chemistry, Volodymyrska str. 64, 01601 Kiev, Ukraine;SciMax LLC, 2 Marshala Yakubovskogo str. 03191, Kyiv, Ukraine;Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale (CHEMS), Université Constantine 1, Constantine 25000, Algeria

关键词: CRYSTAL STRUCTURE;    MALONATE;    COBALT;    COORDINATION POLYMER;   

DOI  :  10.1107/S2056989015023269

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The asymmetric unit of the title polymer, [Co2(C3H3O4)2Cl2(H2O)2]n, comprises one CoII atom, one water mol­ecule, one singly deprotonated malonic acid mol­ecule (HMal−; systematic name 2-carb­oxy­acetate) and one Cl− anion. The CoII atom is octa­hedrally coordinated by the O atom of a water mol­ecule, by one terminally bound carboxyl­ate O atom of an HMal− anion and by two O atoms of a chelating HMal− anion, as well as by two Cl− anions. The Cl− anions bridge two CoII atoms, forming a centrosymmetric Co2Cl2 core. Each malonate ligand is involved in the formation of six-membered chelate rings involving one CoII atom of the dinuclear unit and at the same time is coordinating to another CoII atom of a neighbouring dinuclear unit in a bridging mode. The combination of chelating and bridging coordination modes leads to the formation of a two-dimensional coordination polymer extending parallel to (001). Within a layer, O—Hwater⋯Cl and O—Hwater⋯O hydrogen bonds are present. Adjacent layers are linked through O—H⋯O=C hydrogen bonds involving the carb­oxy­lic acid OH and carbonyl groups.

【 授权许可】

CC BY