Ponjan Nutcha, Kodchasanthong Kenika, Jiajaroen Suwadee, Chainok Kittipong
Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Khlong Luang, Pathum Thani 12121, Thailand.
Division of Chemistry, Faculty of Science and Technology, Thammasat University, Khlong Luang, Pathum Thani 12121, Thailand.
Acta Crystallogr E Crystallogr Commun. 2019 Jan 1;75(Pt 1):64-67. doi: 10.1107/S2056989018017516.
The title lanthanide complex, [Er(CHO)(HO)]·18HO, is isostructural with its La, Gd, Yb and Lu analogues. The Er ion, located on a threefold rotation axis, is nine-coordinated in a distorted tricapped trigonal-prismatic geometry, which is completed by six oxygen atoms from three dhbq ligands and three oxygen atoms from coordinated water mol-ecules. Each dhbq ligand acts in a μ-bis-(bidentate) bridging mode to connect two Er ions to form honeycomb (6,3) two-dimensional sheets extending in the plane, having an Er⋯Er separation of 8.7261 (2) Å. In the crystal, extensive O-H⋯O hydrogen-bonding inter-actions involving the coordinated water mol-ecules and the water mol-ecules of crystallization, as well as the oxygen atoms of the dhbq ligands, generate an overall three-dimensional supra-molecular network.
标题镧系配合物[Er(CHO)(HO)]·18HO与其镧、钆、镱和镥的类似物同构。位于三重旋转轴上的铒离子以扭曲的三帽三棱柱几何构型九配位，由来自三个dhbq配体的六个氧原子和来自配位水分子的三个氧原子构成。每个dhbq配体以μ-双（双齿）桥连模式连接两个铒离子，形成在平面上延伸的蜂窝状（6,3）二维片层，铒⋯铒间距为8.7261 (2) Å。在晶体中，涉及配位水分子、结晶水分子以及dhbq配体氧原子的广泛的O-H⋯O氢键相互作用产生了一个整体的三维超分子网络。
