title: Bis(2,2'-bipyridine)(2-hy-droxy-2,2-diphenyl-acetato)-copper(II) nitrate dihydrate.
abstract: In the title complex, [Cu(C(14)H(11)O(3))(C(10)H(8)N(2))(2)]NO(3)·2H(2)O, the Cu(II) atom is coordinated by four N atoms from two 2,2'-bipyridine ligands and two O atoms from one benzilate ligand in a distorted octa-hedral geometry. A supra-molecular network is formed via inter-molecular O-H⋯O and C-H⋯O hydrogen-bonding inter-actions. π-π stacking inter-actions between neighboring pyridine rings are also present, the centroid-centroid distance being 3.808 (2) Å.
authors.affiliation: School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China.
authors.forename: Xiao-Jun
authors.initials: XJ
authors.lastname: Wang
authors.forename: Chun
authors.initials: C
authors.lastname: Zheng
authors.forename: Shao-Wei
authors.initials: SW
authors.lastname: Mai
authors.forename: Xuan
authors.initials: X
authors.lastname: Xu
authors.forename: Yi-Fan
authors.initials: YF
authors.lastname: Luo