Hou Huan-Fu, Zhang Xiu-Ling
Acta Crystallogr Sect E Struct Rep Online. 2011 Feb 16;67(Pt 3):m342. doi: 10.1107/S1600536811004867.
In the title coordination complex, {[Cd(C(10)H(8)O(6))(H(2)O)(2)]·H(2)O}(n) the Cd(II) atom is seven-coordinated in a distorted penta-gonal-bipyramidal geometry, the penta-gonal plane comprising four O-atom donors from the 2,2'-(1,2-phenyl-enedi-oxy)diacetate chelate ligand together with a bridging carboxyl-ate O-atom donor, with the axial sites occupied by two water mol-ecules. The resulting helical chains extend along the b axis and are inter-connected by extensive O-H⋯O hydrogen-bonding inter-actions, which also involve the water mol-ecule of solvation, giving a three-dimensional structure.
在标题配位聚合物{[Cd(C₁₀H₈O₆)(H₂O)₂]·H₂O}ₙ中，Cd(II)原子以扭曲的五角双锥几何构型七配位，五角平面由来自2,2'-(1,2-苯二氧基)二乙酸螯合配体的四个O原子供体以及一个桥连羧酸根O原子供体组成，轴向位置由两个水分子占据。所得的螺旋链沿b轴延伸，并通过广泛的O—H⋯O氢键相互作用相互连接，这些相互作用还涉及溶剂化水分子，从而形成三维结构。
