trans-Di-aqua-bis-(pyridazine-3-carboxyl-ato-κ(2) N (2),O)copper(II).
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.
Departamento de Química Inorgánica, Facultad de Ciencia y Tecnología, Universidad de País Vasco (UPV/EHU), PO Box 644, E-48080 Bilbao, Spain.
Aroa
A
Pache
Departamento de Química Inorgánica, Facultad de Ciencia y Tecnología, Universidad de País Vasco (UPV/EHU), PO Box 644, E-48080 Bilbao, Spain.
Amaia
A
Iturrospe
Departamento de Química Inorgánica, Facultad de Ciencia y Tecnología, Universidad de País Vasco (UPV/EHU), PO Box 644, E-48080 Bilbao, Spain.
Leire
L
San Felices
Departamento de Química Inorgánica, Facultad de Ciencia y Tecnología, Universidad de País Vasco (UPV/EHU), PO Box 644, E-48080 Bilbao, Spain.
Santiago
S
Reinoso
Departamento de Química Inorgánica, Facultad de Ciencia y Tecnología, Universidad de País Vasco (UPV/EHU), PO Box 644, E-48080 Bilbao, Spain.
Juan M
JM
Gutiérrez-Zorrilla