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Tris(1,10-phenanthroline)nickel(II) dichromate tetra-hydrate.

ABSTRACT: The asymmetric unit of the title compound, [Ni(C(12)H(8)N(2))(3)][Cr(2)O(7)]·4H(2)O, contains one cation, one anion and four water mol-ecules, three of which are disordered over two sites with equal occupancies. In the cation, the metal centre is coordinated by six N atoms from three 1,10-phenanthroline ligands in a distorted octa-hedral geometry. The [Cr(2)O(7)](2-) anion exhibits a staggered conformation. The crystal packing is stabilized by inter-molecular O-H?O hydrogen bonds and ?-? inter-actions, evidenced by short distances of 3.531?(5)?Å between the centroids of aromatic rings.

SUBMITTER: Liu HX

PROVIDER: S-EPMC2979795 | biostudies-literature | 2010 Jan

REPOSITORIES: biostudies-literature

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Tris(1,10-phenanthroline)nickel(II) dichromate tetra-hydrate.

Liu Hai-Xing HX

Acta crystallographica. Section E, Structure reports online 20100113 Pt 2

The asymmetric unit of the title compound, [Ni(C(12)H(8)N(2))(3)][Cr(2)O(7)]·4H(2)O, contains one cation, one anion and four water mol-ecules, three of which are disordered over two sites with equal occupancies. In the cation, the metal centre is coordinated by six N atoms from three 1,10-phenanthroline ligands in a distorted octa-hedral geometry. The [Cr(2)O(7)](2-) anion exhibits a staggered conformation. The crystal packing is stabilized by inter-molecular O-H⋯O hydrogen bonds and π-π inter-a ...[more]

PMID: 21579624

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Tris(1,10-phenanthroline-?(2)N,N')iron(II) bis-[(1,10-phenanthroline-?(2)N,N')tetra-kis-(thio-cyanato-?N)chromate(III)] acetonitrile tris-olvate monohydrate.

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(Acetato-?O,O')bis-(1,10-phenanthroline-?N,N')copper(II) trifluoro-acetate tetra-hydrate.

Project description:In the title compound, [Cu(CH(3)CO(2))(C(12)H(8)N(2))(2)](CF(3)CO(2))·4H(2)O, the Cu(II) atom shows a distorted octa-hedral coordination with four N atoms [Cu-N = 2.015?(3)-2.244?(3)?Å] from the two phenanthroline ligands and two O atoms from the acetate [Cu-O = 1.953?(3) and 2.764?(3)?Å]. Strong inter-molecular O-H?O hydrogen-bonding inter-actions consolidate the crystal packing. The F atoms of the anion are disordered over two positions in a 0.5233?(3):0.4767?(3) ratio.

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