Tetra-kis(μ3-2-{[1,1-bis-(hy-droxy-meth-yl)-2-oxidoeth-yl]imino-meth-yl}-6-nitro-pheno-lato)tetra-copper(II).
The title cluster, [Cu4(C11H12N2O6)4], was obtained from the Cu(0)-FeCl2·4H2O-H4 L-Et3N-DMF reaction system (in air), where H4 L is 2-hy-droxy-methyl-2{[(2-hy-droxy-3-nitro-phen-yl)methyl-idene]amino}-propane-1,3-diol and DMF is di-methyl-formamide. The asymmetric unit consists of one Cu(2+) ion and one dianionic ligand; a -4 symmetry element generates the cluster, which contains a {Cu4O4} cubane-like core. The metal ion has an elongated square-based pyramidal CuNO4 coordination geometry with the N atom in a basal site. An intra-molecular O-H⋯O hydrogen bond is observed. The solvent mol-ecules were found to be highly disordered and their contribution to the scattering was removed with the SQUEEZE procedure in PLATON [Spek (2009 ▶). Acta Cryst. D65, 148-155], which indicated a solvent cavity of volume 3131 Å(3) containing approximately 749 electrons. These solvent molecules are not considered in the given chemical formula.
Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, 64\13 Volodymyrska St, Kyiv 01601, Ukraine.
Eduard N
EN
Chygorin
Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, 64\13 Volodymyrska St, Kyiv 01601, Ukraine.
Yuri O
YO
Smal
Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, 64\13 Volodymyrska St, Kyiv 01601, Ukraine.
Vladimir N
VN
Kokozay
STC 'Institute for Single Crystals', National Academy of Sciences of Ukraine, 60 Lenina Avenue, Kharkiv 61001, Ukraine.
Irina V
IV
Omelchenko