| (LaCl)(THF)2(μ-Cl)4[Li(THF)2]2配合物的合成及晶体结构 |
| SYNTHESIS AND CRYSTAL STRUCTURE OF(LaCl)(THF)2(μ-Cl)4 [Li(THF)2)2 |
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| 摘要: LaCl3和LiCl在THF中于室温反应,以已烷为沉淀剂,在-78℃得到晶体,经色谱、元素分析及X射线晶体结构测定,得到了组成为(LaCl)(THF)2(μ-Cl)4[Li(THF)2]2的配合物.在约-80℃收集该配合物晶体的衍射强度数据,计算结果表明属于单斜晶系,P21/c空间群,其晶胞常数a=10.542(4)Å,b=32.236(14)Å,c=11.182(6)Å;β=113.50(3)°,最后R值为0.0477.四个氯桥键构成了分子的基本骨架,表明桥键在小配体轻希土双金属配合物结构中具有稳定作用. |
| 关键词: 氯化镧-氧化锂配合物 氯桥键 晶体结构 |
| 基金项目: |
| Abstract: The reaction between LaCl3 and LiCl in THF at room temperature, with hexane as precipitant, has been studied. A crystal was isolated from the solution at -78℃.The crystal was characterized as a complex with the composition of(LaCl)(THF)2(μ-Cl)4 [Li(THF)2]2 by gas chromatography, elemental analysis and X-ray diffraction of the single crystal. The diffraction intensities were collected at about -80℃. The complex belongs to monoclinic space group P21/c with a=10.542(4)Å, b=32.236(14)Å, c=11.182(6)Å, β=113.50 °(3). The final R value is 0.0477. The basic molecular skeleton of the complex is made of four chloro-bridge bonds, which show the stabilizing function of the bridge bond in structure of bimetallic complexes of light rare earth elements with the small ligands. |
| Keywords: lanthanium chloride-lithium chloride complex crystal structure chloro-bridge bond |
| 投稿时间：1988-08-01 |
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| 李祥高,刘静芝,金松春,林永华,刘国智.(LaCl)(THF)2(μ-Cl)4[Li(THF)2]2配合物的合成及晶体结构[J].无机化学学报,1991,7(2):190-195. |
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