| 八配位钇(Ⅲ)-反式-1,2-环己二胺四乙酸配合物NH4[Y(trans-CYDTA)(H2O)2]·4.5H2O的合成及分子结构 |
| Synthesis and Molecular Structure of Eight Coordinate Complex NH4[Y(trans-CYDTA)(H2O)2]·4.5H2O |
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| 摘要: |
| 关键词: Y(Ⅲ) 反式-1,2-环己二胺四乙酸(trans-CYDTA) 配合物 分子结构 |
| 基金项目: 辽宁省科委自然科学基金资助项目(No.9810300901). |
| Abstract: In this paper, the molecular and crystal structures of the NH4[Y(trans CYDTA)(H2O)2]·4.5 H2O(trans-CYDTA=trans 1,2-cyclohexanediaminetetraacetic acid) are reported. The crystal data are as follows: Triclinic system, P1space group,a=0.8599(6)nm,b=1.0021(7)nm,c=1.4370(9)nm,α =88.095(13)°,β =75.559(1)°,γ =88.344(12)°,V=1.1981(14)nm3,Z=2, M=708.68,Dc=1.570g· cm-3, μ =2.506mm-1 and F(000)=590. The final R1 and wR2 are 0.0571 and 0.1350 for 4205 [I >2.0σ (I)] unique reflections and 0.1007 and 0.1615 for all 4981 reflections, respectively. In the title complex, the anion [Y(trans-CYDTA)(H2O)2]- has an eight coordination structure with distorted square antiprism. The trans CYDTA which acts as a hexadentate ligand with four Oatoms and two Natoms and two H2O molecules directly coordinate to central metal Y(Ⅲ) ion. It can be known that the Y(Ⅲ) ion can form an eight coordinate compound with aminopolycarboxylic acid ligands in addition nine coordination structure. |
| Keywords: Y(Ⅲ) trans-1,2-cyclohexanediaminetetraacetic acid(trans-CYDTA) complex molecular structure |
| 投稿时间：2001-05-22 修订日期：2001-06-25 |
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| 王君,张向东,范大民,领小.八配位钇(Ⅲ)-反式-1,2-环己二胺四乙酸配合物NH4[Y(trans-CYDTA)(H2O)2]·4.5H2O的合成及分子结构[J].无机化学学报,2001,17(5):755-759. |
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