| 双齿配体八配位镧系配合物的结构化学研究——La[(S2CNC4H8)3·C4H8O·H2O]的合成和晶体结构 |
| STRUCTURAL CHEMISTRY OF EIGHTCOORDINATE COMPLEXES OF LANTHANIDE WITH BIDENTATELIGANDS I. SYNTHESIS AND CRYSTAL STRUCTURE OF La[(S2CNC4H8)3·C4H8O·H2O] |
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| 摘要: 镧的配合物La[(S2CNC4H8)3·C4H8O·H2O]是由LaCl3和Na(S2CNC4H8)·2H2O在四氢呋喃中反应而获得的.它的晶体属于三斜晶系,空间群为Pi,单胞参数a=10.557(2)Å,b=10.943(3)Å,c=13.443(3)Å,α=101.83(2)Å,β=9306(2)°,γ=114.90(2)°,V=1391.9(1.5)Å3,Z=2. 晶体结构是采用Patterson法和几轮的差Fourier合成解出的.所有非氢原子的位置参数和各向异性热振动参数经全矩阵最小二乘法修正,最后偏离因子R=0.032,Rw=0.046.分子结构中La原子同三个(S2CNC4H8)-中的六个S原子和分别来自四氢呋喃分子和水分子中的二个O原子键联.La—S平均距离2.973Rw,La—O距离分别为2.596Å(THF)和2.555Å(H2O),它们形成一个扭变三角形十二面体的配位多面体构型. |
| 关键词: 镧系元素 晶体结构 |
| 基金项目: |
| Abstract: The lanthanum complex La(S2CNC4H8)3·C4H8O·H2O was prepared by reacting LaCl3 with La(S2CNC4H8)·2H2O in THF.The X-ray crystal and molecular structure of the lanthanum complex has been determined from diffractometer data. Crystallographic data are as follows, triclinic; space group P1, with a=10.557(2), b=10.943(3), c=13.443(3)Å, α=101.83(2), β=93.06(2), r=114.90(2), V=1361.6(1.5)Å3, Z=2.The structure was solved by Patterson method and refined by full matrix least-square techniques for 4534 reflections with I>2σ(I),R=0.032, RW=0.046.The molecule consists of the La atom bonded to six sulfur atoms of the(C4H8NCS2)- ligand and to two oxygen atoms.The mean La-S distance is 2.973C4H8. The La-O(H2O)and La-O(THF)distances are 2.555Å and 2.596Å, respectively.The coordination polyhedron can be described as a distorted dodecahedron. |
| Keywords: lanthaaide element crystal structure |
| 投稿时间：1986-06-15 |
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| 黄锦顺,林善火,王曼芳,张乾二,卢嘉锡.双齿配体八配位镧系配合物的结构化学研究——La[(S2CNC4H8)3·C4H8O·H2O]的合成和晶体结构[J].无机化学学报,1987,3(1):1-6. |
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