Starosta Wojciech, Leciejewicz Janusz
Institute of Nuclear Chemistry and Technology, ul.Dorodna 16, 03-195 Warszawa, Poland.
Acta Crystallogr Sect E Struct Rep Online. 2009 Oct 3;65(Pt 11):m1291. doi: 10.1107/S1600536809039658.
The structure of the title compound, [Pb(2)(C(5)H(3)N(2)O(2))(4)(H(2)O)(6)]·2H(2)O, is composed of dimeric mol-ecules in which two symmetry-related Pb(2+) ions are bridged by a pair of two pyridazine-4-carboxyl-ate ligand mol-ecules via both heterocyclic N atoms and two water O atoms. Each Pb(2+) ion is also coordinated by two carboxyl-ate O atoms and three water O atoms, leading to a highly irregular coordination polyhedron around Pb(2+). The dimers are inter-connected by hydrogen bonds between coordinated and uncoordinated water mol-ecules and the carboxyl-ate O atoms. O-H⋯N inter-actions are also present.
标题化合物[Pb₂(C₅H₃N₂O₂)₄(H₂O)₆]·2H₂O的结构由二聚体分子组成，其中两个对称相关的Pb²⁺离子通过一对哒嗪-4-羧酸酯配体分子的两个杂环N原子和两个水分子的O原子桥连。每个Pb²⁺离子还与两个羧酸酯O原子和三个水分子的O原子配位，导致Pb²⁺周围形成高度不规则的配位多面体。二聚体通过配位和未配位水分子与羧酸酯O原子之间的氢键相互连接。还存在O-H⋯N相互作用。
