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Tris(1,2-diamino-ethane)-nickel(II) hexa-fluoridosilicate.


ABSTRACT: The ionic title complex, [Ni(C(2)H(8)N(2))(3)](SiF(6)), is built up of [Ni(en)(3)](2+) complex cations (en = 1,2-diamino-ethane) and hexa-fluoridosilicate anions. Single crystals of the title complex were isolated from an aqueous-ethano-lic Ni(2+)-en-SiF(6) (2-) system. The Ni(II) and Si atoms are each located on a special position with site symmetry 3.2. The Ni(II) atom coordination sphere is octa-hedrally deformed, being coordinated by three chelating diamine ligands with an Ni-N distance of 2.1233?(18)?Å. The crystal packing of the respective ions corresponds to the structure type of the hexa-gonal form of BN. Beside ionic forces, the packing is governed by N-H?F hydrogen bonds, which lead to the formation of hydro-phobic channels running along the 6(3) screw axis. The structure was refined as an inversion twin [0.49?(3): 0.51?(3)].

SUBMITTER: Hanikova J 

PROVIDER: S-EPMC3009077 | biostudies-literature | 2010 Oct

REPOSITORIES: biostudies-literature

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Tris(1,2-diamino-ethane)-nickel(II) hexa-fluoridosilicate.

Haníková Jaroslava J   Kuchár Juraj J   Cernák Juraj J   Pelosi Giorgio G  

Acta crystallographica. Section E, Structure reports online 20101023 Pt 11


The ionic title complex, [Ni(C(2)H(8)N(2))(3)](SiF(6)), is built up of [Ni(en)(3)](2+) complex cations (en = 1,2-diamino-ethane) and hexa-fluoridosilicate anions. Single crystals of the title complex were isolated from an aqueous-ethano-lic Ni(2+)-en-SiF(6) (2-) system. The Ni(II) and Si atoms are each located on a special position with site symmetry 3.2. The Ni(II) atom coordination sphere is octa-hedrally deformed, being coordinated by three chelating diamine ligands with an Ni-N distance of 2  ...[more]

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