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Trans-Di-aqua-bis-(pyridazine-3-carboxyl-ato-?(2) N (2),O)copper(II).


ABSTRACT: In the title compound, [Cu(C5H3N2O2)2(H2O)2], the Cu(II) ion, located on an inversion center, exhibits an octa-hedral coordination geometry. The equatorial plane is defined by two trans-related N,O-bidentate pyridazine-3-carboxyl-ate ligands and the axial positions are occupied by two water mol-ecules. In the crystal, mol-ecules are connected by O-H?O hydrogen bonds between the water mol-ecules and the noncoordinating carboxyl-ate O atoms, forming layers parallel to the bc plane. The layers are stacked along the a axis by further O-H?O hydrogen bonds between the water mol-ecules and the coordinating carboxyl-ate O atoms. Weak C-H?O hydrogen bonds are also observed between the pyridazine rings and the water mol-ecules and between the pyridazine rings and the non-coordinating carboxyl-ate O atoms.

SUBMITTER: Pache A 

PROVIDER: S-EPMC3998405 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature

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trans-Di-aqua-bis-(pyridazine-3-carboxyl-ato-κ(2) N (2),O)copper(II).

Pache Aroa A   Iturrospe Amaia A   San Felices Leire L   Reinoso Santiago S   Gutiérrez-Zorrilla Juan M JM  

Acta crystallographica. Section E, Structure reports online 20140228 Pt 3


In the title compound, [Cu(C5H3N2O2)2(H2O)2], the Cu(II) ion, located on an inversion center, exhibits an octa-hedral coordination geometry. The equatorial plane is defined by two trans-related N,O-bidentate pyridazine-3-carboxyl-ate ligands and the axial positions are occupied by two water mol-ecules. In the crystal, mol-ecules are connected by O-H⋯O hydrogen bonds between the water mol-ecules and the noncoordinating carboxyl-ate O atoms, forming layers parallel to the bc plane. The layers are  ...[more]

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