草酸硫酸水合铽(III)钾
Potassium aqua-terbium(III) oxalate sulfate.
作者信息
Sun Ya-Guang, Guo Mei-Yan, Xiong Gang, Jiang Bing, Wang Lei
机构信息
Laboratory of Coordination Chemistry, Shenyang Institute of Chemical Technology, Shenyang 110142, People's Republic of China.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2009 Jun 6;65(Pt 7):i48. doi: 10.1107/S1600536809019679.
Single crystals of KTb(C(2)O(4))(SO(4))(H(2)O), potassium aqua-terbium(III) oxalate sulfate, were obtained under hydro-thermal conditions. In the crystal structure, the Tb(III) atom is coordinated by four O atoms from two oxalate anions, three O atoms from three sulfate anions and one O atom from a water mol-ecule within a TbO(8) distorted square antiprismatic coordination. The potassium and terbium(III) atoms are bridged by the oxalate and sulfate groups, forming a three-dimensional structure. The coordination mode of the oxalate has not yet been reported. O-H⋯O hydrogen bonding between the water molecules and the oxygen atoms of oxalate and sulfate anions is also observed.
水合硫酸草酸铽（III）钾（KTb(C₂O₄)(SO₄)(H₂O)）单晶是在水热条件下获得的。在晶体结构中，Tb(III)原子由来自两个草酸根阴离子的四个O原子、来自三个硫酸根阴离子的三个O原子和来自一个水分子的一个O原子配位，形成一个TbO₈畸变四方反棱柱配位结构。钾原子和铽（III）原子由草酸根和硫酸根基团桥连，形成三维结构。草酸根的配位模式尚未见报道。还观察到水分子与草酸根和硫酸根阴离子的氧原子之间存在O-H⋯O氢键。
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