| 希土冠醚类配合物的研究 ⅩⅢ.[Sc(NO3)3(H2O)3]·(18-C-6)配合物的合成、性质和结构 |
| STUDIES ON COMPLEXES OF RARE EARTH ANDCROWN ETHERS X ⅡI.SYNTHES IS, CHARACTERIZATION AND STRUCTURE OF COMPLEX [Sc(NO3)3(H2O)3]·(18-Crown-6) |
|
| 摘要: 在乙腈介质中培养出由硝酸钪与18-冠-6组成的配合物[Sc(NO3)3(H2O)3]·(18-C-6)的单晶、对配合物进行了熔点测定、元素分析、红外光谱、摩尔电导测定和X射线结构分析。 |
| 关键词: 配合物 硝酸钪 18-冠-6 合成 结构 |
| 基金项目: 国家教委资助项目 |
| Abstract: The single crystal of the complex [Sc(NO3)3(H2O)3]·(18-C-6) has been prepared in acet onitrile medium. The new complex has been characterized by elemental analyses, IR spectra, solubility and molar conductance measurements. The structure of the complex is determined by X-ray single crystal diffraction analyses. The crystal of the complex is orthorhombic, space group Pnma. with cell parameters 15.311(0)Å,A = 14.053(9)Å,c = 10.862(7)Å,V=2337.4Å3; Z=4; de = 1.56g / cm3, d0=1.56g / cm3. The structure was solved by direct method and Fourier techniques and refined by least-squares to R = 0.069 and Rw= 0.062 using 1513≥3ó(I) observed data. Here the scandium (ⅡI) ion is not bonded to the crown ether but is surrounded by three bidcntate nitrate groups and three water molecules. The coordination number of scandium (ⅡI) ion is nine. The crown ether 18C6 is held in the lattice by linking to the [Sc(NO3)3(H2O)] unit via hydrogen bond through the coordinated water molecules. The average bond lengths are 2.295Å for the Sc-O(NO3-) bonds and 2.190Å for the Sc-O(H2O) bonds respectively. |
| Keywords: complex scandiummltrate 18-crown-6 synthesis structure |
| 投稿时间：1987-06-10 |
| 摘要点击次数: 1419 |
| 全文下载次数: 1307 |
| 谭民裕,甘新民,唐宁,邹今平,王欣,祝英.希土冠醚类配合物的研究 ⅩⅢ.[Sc(NO3)3(H2O)3]·(18-C-6)配合物的合成、性质和结构[J].无机化学学报,1990,6(1):5-9. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
