Abstract
The title compound, [Cu2(C16H20N6O4)(NO3)2(H2O)4]·3H2O, crystallizes with two dinuclear CuII complex molecules, each lying on an inversion center, and six solvent water molecules per unit cell. The central 1,6-diazecine ring adopts the common chair conformation invariably found in the family of complexes bearing such ligands. The CuII atoms have an octahedral geometry, with a very strong tetragonal distortion due to the Jahn–Teller effect. Axial sites are occupied by a nitrate ion and a water molecule. The Cu⋯Cu separations [7.3580 (9) and 7.3341 (9) Å] are compatible with a potential catecholase activity. Neighboring molecules in the crystal structure are connected via O—H⋯O hydrogen bonds formed by water molecules and carboxylate O atoms. N—H⋯O hydrogen bonds are also present.
Highlights
The title compound, [Cu2(C16H20N6O4)(NO3)2(H2O)4]3H2O, crystallizes with two dinuclear CuII complex molecules, each lying on an inversion center, and six solvent water molecules per unit cell
Axial sites are occupied by a nitrate ion and a water molecule
Neighboring molecules in the crystal structure are connected via O—H O hydrogen bonds formed by water molecules and carboxylate O atoms
Summary
Gasquea a Departamento de Quımica Inorgánica y Nuclear, Facultad de Quımica, UNAM, 04510 México, DF, Mexico, and bDEP Facultad de Ciencias Quımicas, UANL, Guerrero y Progreso S/N, Col. Treviño, 64570 Monterrey, NL, Mexico. The title compound, [Cu2(C16H20N6O4)(NO3)2(H2O)4]3H2O, crystallizes with two dinuclear CuII complex molecules, each lying on an inversion center, and six solvent water molecules per unit cell. The central 1,6-diazecine ring adopts the common chair conformation invariably found in the family of complexes bearing such ligands. The CuII atoms have an octahedral geometry, with a very strong tetragonal distortion due to the Jahn–Teller effect. Axial sites are occupied by a nitrate ion and a water molecule. Neighboring molecules in the crystal structure are connected via O—H O hydrogen bonds formed by water molecules and carboxylate O atoms.
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