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Crystal structure of catena-poly[[[di-aqua-cobalt(II)]-bis-(?-hex-3-enedi-nitrile-?(2) N:N')] bis-(tetra-fluorido-borate)].

ABSTRACT: In the structure of the title salt, [Co(C6H6N2)2(H2O)2](BF4)2, the Co(II) atom is located on an inversion centre. The transition metal is in a slightly distorted octa-hedral coordination environment, defined by the cyano N atoms of four hex-3-enedi-nitrile ligands in equatorial positions and the O atoms of two water mol-ecules in axial positions. The bridging mode of the hex-3-enedi-nitrile 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 methyl-ene H atom of the hex-3-enedi-nitrile 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.

SUBMITTER: Son JS 

PROVIDER: S-EPMC4459353 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Crystal structure of catena-poly[[[di-aqua-cobalt(II)]-bis-(μ-hex-3-enedi-nitrile-κ(2) N:N')] bis-(tetra-fluorido-borate)].

Son Jung-Su JS   Lim Sung-Chul SC   Lee Hochun H   Hong Seung-Tae ST  

Acta crystallographica. Section E, Crystallographic communications 20150523 Pt 6

In the structure of the title salt, [Co(C6H6N2)2(H2O)2](BF4)2, the Co(II) atom is located on an inversion centre. The transition metal is in a slightly distorted octa-hedral coordination environment, defined by the cyano N atoms of four hex-3-enedi-nitrile ligands in equatorial positions and the O atoms of two water mol-ecules in axial positions. The bridging mode of the hex-3-enedi-nitrile ligands leads to the formation of cationic chains extending parallel to [1-10]. The BF4 (-) counter-anion  ...[more]

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