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[Aqua-bis-(nitrato-?O)copper(II)]-?-{bis-[5-methyl-3-(pyridin-2-yl)-1H-pyrazol-4-yl]selenide}-[diaqua-(nitrato-?O)copper(II)] nitrate monohydrate.

ABSTRACT: In the title binuclear complex, [Cu2(NO3)3(C18H16N6Se)(H2O)3]NO3·H2O, the Cu(II) ions are penta-coordinated in a tetra-gonal-pyramidal geometry. In both cases, the equatorial planes are formed by a chelating pyrazole-pyridine group, a water mol-ecule and a nitrate O atom, whereas the apical positions are occupied by a water mol-ecule for one Cu(II) ion and a nitrate O atom for the other. The organic selenide ligand adopts a trans configuration with respect to the C-Se-C plane. Numerous inter-molecular O-H?O and N-H?O hydrogen bonds between the coordinating and lattice water mol-ecules, nitrate anions and pyrazole groups are observed. ?-? stacking inter-actions between the pyridine rings [averaged centroid-centroid distance = 3.652?(5)?Å] are also present. The lattice water molecule is equally disordered over two sets of sites.

SUBMITTER: Seredyuk M 

PROVIDER: S-EPMC3588734 | biostudies-literature | 2012 Dec

REPOSITORIES: biostudies-literature

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[Aqua-bis-(nitrato-κO)copper(II)]-μ-{bis-[5-methyl-3-(pyridin-2-yl)-1H-pyrazol-4-yl]selenide}-[diaqua-(nitrato-κO)copper(II)] nitrate monohydrate.

Seredyuk Maksym M   Pavlenko Vadim A VA   Gumienna-Kontecka Elzbieta E   Iskenderov Turganbay S TS  

Acta crystallographica. Section E, Structure reports online 20121114 Pt 12

In the title binuclear complex, [Cu2(NO3)3(C18H16N6Se)(H2O)3]NO3·H2O, the Cu(II) ions are penta-coordinated in a tetra-gonal-pyramidal geometry. In both cases, the equatorial planes are formed by a chelating pyrazole-pyridine group, a water mol-ecule and a nitrate O atom, whereas the apical positions are occupied by a water mol-ecule for one Cu(II) ion and a nitrate O atom for the other. The organic selenide ligand adopts a trans configuration with respect to the C-Se-C plane. Numerous inter-mol  ...[more]

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