title: Bis(methanol-κO)bis-(1,2-diamino-2-hy-droxy-imino-ethanone oximato-κ(2)N,N')copper(II) bis-(oxamide dioxime) methanol disolvate.
abstract: In the title compound, [Cu(C(2)H(5)N(4)O(2))(2)(CH(3)OH)(2)]·2C(2)H(6)N(4)O(2)·2CH(3)OH, the Cu(II) atom, lying on an inversion center, is coordinated by four N atoms from two 1,2-diamino-2-hy-droxy-imino-ethanone oximate anion and two O atoms from two methanol mol-ecules in a distorted octa-hedral geometry. The two uncoordinating oxamide dioxime mol-ecules, each lying on an inversion center, adopt a trans conformation. In the crystal, O-H⋯O, N-H⋯O and N-H⋯N hydrogen bonds link the complex mol-ecules and the oxamide dioxime and methanol mol-ecules.
authors.affiliation: Department of Chemistry, Nankai University, Tianjin 300071,  People's Republic of China.
authors.forename: Daying
authors.initials: D
authors.lastname: Liu
authors.forename: Ruihong
authors.initials: R
authors.lastname: Zhang
authors.forename: Hui
authors.initials: H
authors.lastname: Hu
authors.forename: Jing
authors.initials: J
authors.lastname: Qi
authors.forename: Guangming
authors.initials: G
authors.lastname: Yang