二水合双（2-氧代-2H-色烯-3-羧酸根-κO，O）镉
Diaqua-bis-(2-oxo-2H-chromene-3-carboxyl-ato-κO,O)cadmium.
作者信息
Cui Yue, Gao Qian, Wang Huan-Huan, Wang Lin, Xie Ya-Bo
机构信息
College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, People's Republic of China.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2010 Dec 24;67(Pt 1):m126. doi: 10.1107/S1600536810053523.
In the title mononuclear cadmium complex, [Cd(C(10)H(5)O(4))(2)(H(2)O)(2)], the Cd(II) atom, located on a crystallographic inversion center, exhibits a slightly distorted octa-hedral geometry and is six-coordinated by two O atoms from water mol-ecules in the axial positions and four O atoms from two deprotonated coumarin-3-carb-oxy-lic acid ligands in the equatorial plane. Angles around the Cd(II) atom vary between 81.00 (5) and 99.00 (0)°. The Cd-O bond lengths vary between 2.1961 (13) and 2.3360 (13) Å. O-H⋯O hydrogen bonds between the H atoms of coordinated water mol-ecules and the O atoms of carboxyl-ate groups link the complex mol-ecules into layers parallel to the ab plane.
在标题单核镉配合物[Cd(C₁₀H₅O₄)₂(H₂O)₂]中，位于晶体学反演中心的Cd(II)原子呈现出略微扭曲的八面体几何构型，由轴向位置的两个水分子中的O原子和赤道平面上来自两个去质子化香豆素-3-羧酸配体的四个O原子进行六配位。Cd(II)原子周围的角度在81.00 (5)°至99.00 (0)°之间变化。Cd - O键长在2.1961 (13) Å至2.3360 (13) Å之间变化。配位水分子的H原子与羧酸根基团的O原子之间的O - H⋯O氢键将配合物分子连接成平行于ab平面的层。
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