title: Diaqua-bis(9-oxo-4,5-diaza-fluoren-3-olato-κN,O)cadmium(II).
abstract: The title compound, [Cd(C(11)H(5)N(2)O(2))(2)(H(2)O)(2)], is a mononuclear complex consisting of a Cd(II) atom, two 3-hydr-oxy-4,5-diaza-fluoren-9-one ligands and two coordinated water mol-ecules. The Cd(II) atom, lying on a twofold axis, displays a distorted octa-hedral coordintion. Adjacent mol-ecules are linked by O-H⋯O hydrogen bonds and π-π inter-actions [centroid-centroid distance = 3.84 (1) Å], leading to a one-dimensional chain. Weak C-H⋯O hydrogen bonds connect the chains into a two-dimensional supra-molecular structure.
authors.affiliation: Department of Environment Science, Northeast Normal University, Changchun 130024, People's Republic of China.
authors.forename: Ya-Hui
authors.initials: YH
authors.lastname: Zhao
authors.forename: Xing
authors.initials: X
authors.lastname: Yuan
authors.forename: Wei-Chao
authors.initials: WC
authors.lastname: Qin
authors.forename: Lian-Xi
authors.initials: LX
authors.lastname: Sheng
authors.forename: Yun-Zheng
authors.initials: YZ
authors.lastname: Ding