Crystal structure of catena-poly[[[di­aqua­cobalt(II)]-bis­(μ-hex-3-enedi­nitrile-κ2N:N′)] bis­(tetra­fluorido­borate)]

Acta Crystallographica Section E: Crystallographic Communications

Hong, S.-T.¹  Lim, S.-C.¹  Lee, H.²  Son, J.-S.² 

[1] Technology (DGIST), Daegu 711-873, Republic of Korea;Daegu Gyeongbuk Institue of Science &

关键词: CRYSTAL STRUCTURE;    COBALT;    HEX-3-ENEDINITRILE;    HYDROGEN BONDING;   

DOI  :  10.1107/S2056989015009548

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

In the structure of the title salt, [Co(C6H6N2)2(H2O)2](BF4)2, the CoII atom is located on an inversion centre. The transition metal is in a slightly distorted octa­hedral coordination environment, defined by the cyano N atoms of four hex-3-enedi­nitrile ligands in equatorial positions and the O atoms of two water mol­ecules in axial positions. The bridging mode of the hex-3-enedi­nitrile ligands leads to the formation of cationic chains extending parallel to [1-10]. The BF4− counter-anion is disordered over two sets of sites [occupancy ratio = 0.512 (19):0.489 (19)]. It is located in the voids between the cationic chains and is connected to the aqua ligands of the latter through O—H⋯F hydrogen bonds. One methyl­ene H atom of the hex-3-enedi­nitrile ligand forms another and weak C—H⋯O hydrogen bond with a water O atom of a neighbouring chain, thus consolidating the three-dimensional network structure.

【 授权许可】

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