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Tetra-ethyl-ammonium (2,2'-bipyridine)tetra-cyanidocobaltate(III) sesquihydrate acetonitrile solvate.

ABSTRACT: The title complex, (C(8)H(20)N)[Co(CN)(4)(C(10)H(8)N(2))]·CH(3)CN·1.5H(2)O, consists of tetra-ethyl ammonium cations, mononuclear [Co(III)bpy(CN)(4)](-) anions and uncoordinated water and acetonitrile mol-ecules. The Co(III) atom is six-coordinated by two 2,2'-bipyridine (bpy) N atoms and four cyanide C atoms in a distorted octa-hedral geometry. The acute bite angle of the chelating bpy [82.28?(8)°] is the main factor accounting for this distortion. In addition, the tetra-ethyl-ammonium cation is significantly disordered [occupancy ratio 0.611?(3):0.389?(3)]. The presence of water mol-ecules, one of which is disordered over two positions about an inversion center, results in the formation of a network of O-H?N hydrogen bonds involving the cyanide N atoms.

SUBMITTER: Lyubartseva G 

PROVIDER: S-EPMC2983854 | biostudies-other | 2010

REPOSITORIES: biostudies-other

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Tetra-ethyl-ammonium (2,2'-bipyridine)tetra-cyanidocobaltate(III) sesquihydrate acetonitrile solvate.

Lyubartseva Ganna G   Parkin Sean S  

Acta crystallographica. Section E, Structure reports online 20100331 Pt 4

The title complex, (C(8)H(20)N)[Co(CN)(4)(C(10)H(8)N(2))]·CH(3)CN·1.5H(2)O, consists of tetra-ethyl ammonium cations, mononuclear [Co(III)bpy(CN)(4)](-) anions and uncoordinated water and acetonitrile mol-ecules. The Co(III) atom is six-coordinated by two 2,2'-bipyridine (bpy) N atoms and four cyanide C atoms in a distorted octa-hedral geometry. The acute bite angle of the chelating bpy [82.28 (8)°] is the main factor accounting for this distortion. In addition, the tetra-ethyl-ammonium cation i  ...[more]

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