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Tris(2,2'-bi-1H-imidazole-?N,N)-nickel(II) dinitrate N,N-dimethyl-formamide monosolvate.

ABSTRACT: The reaction of nickel salts and 4,4'-bipyridine with 2,2'-bi-imidazole (H(2)biim) yielded the title complex, [Ni(C(6)H(6)N(4))(3)](NO(3))(2)·C(3)H(7)NO. The Ni(II) atom is chelated by three H(2)biim ligands in a distorted octa-hedral coordination geometry. The two nitrate anions and one dimethyl-formamide (DMF) mol-ecule are not coordinated. The compound has a three-dimensional structure, formed by extensive hydrogen bonding between [Ni(H(2)biim)(3)](2+) cations and nitrate anions, each nitrate anion forming hydrogen bonds with an R(1) (2)(4) motif. The DMF molecule is disordered over three sets of sites, with occupancy ratios of 0.341?(16):0.350?(17):0.309?(19).

SUBMITTER: Qiu QM 

PROVIDER: S-EPMC3247001 | biostudies-literature | 2011 Nov

REPOSITORIES: biostudies-literature

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Tris(2,2'-bi-1H-imidazole-κN,N)-nickel(II) dinitrate N,N-dimethyl-formamide monosolvate.

Qiu Qi-Ming QM   Yang Wei W   Li Zhong-Feng ZF   Jin Qiong-Hua QH   Zhang Cun-Lin CL  

Acta crystallographica. Section E, Structure reports online 20111022 Pt 11

The reaction of nickel salts and 4,4'-bipyridine with 2,2'-bi-imidazole (H(2)biim) yielded the title complex, [Ni(C(6)H(6)N(4))(3)](NO(3))(2)·C(3)H(7)NO. The Ni(II) atom is chelated by three H(2)biim ligands in a distorted octa-hedral coordination geometry. The two nitrate anions and one dimethyl-formamide (DMF) mol-ecule are not coordinated. The compound has a three-dimensional structure, formed by extensive hydrogen bonding between [Ni(H(2)biim)(3)](2+) cations and nitrate anions, each nitrate  ...[more]

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