| 镧系稀土四元配合物Ln(NO3)2(phen)2(CH3COCHCOCH3)的合成及晶体结构表征 | |||||||||
| Synthesis and Crystal Structure Analysis of Lanthanide Complexes Ln(NO3)2(phen)2(CH3COCHCOCH3) | |||||||||
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| 摘要: 以乙酰丙酮(Hacac)、邻菲咯啉(phen)、硝酸根为配体，8-羟基喹啉为酸度调节剂合成出一个系列的镧系轻稀土四元配合物Ln(NO3)2(phen)2(CH3COCHCOCH3)(Ln=La，Ce，Pr，Nd，Sm)。配合物的结构与性质由元素分析，IR，1H NMR和TGA等表征。单晶Ce(NO3)2(phen)2(CH3COCHCOCH3)·H2O结构经由X射线衍射仪分析表明，晶体属单斜晶系，空间群P21/n，晶胞参数为a=1.110 17(8) nm，b=0.984 01(7) nm，c=1.344 53(10) nm，β=102.053 0(10)°，V=1.436 41(18) nm3，Dc=1.715 g·cm-3，Z=2，F(000)=742。配合物呈单核结构，中心离子Ce(Ⅲ)配位数为10。 | |||||||||
| 关键词: 镧系稀土配合物 合成 表征 晶体结构 | |||||||||
| 基金项目: | |||||||||
| Abstract: A series of quaternary lanthanide complexes Ln(NO3)2(phen)2(CH3COCHCOCH3)(Ln=La, Ce, Pr, Nd, Sm) were synthesized with acetyl acetone (Hacac), 1,10-phenanthroline (phen) and nitrate radical as ligands and 8-hydroxyquinoline as the acidity conditionor. The structure and property of complexes were characterized by elemental analysis, IR, 1H NMR spectroscopy and TGA, and the single crystal structure of Ce(NO3)2(phen)2(CH3COCHCOCH3)·H2O was studied by X-ray diffraction analysis. It is shown that the complex is monoclinic, space group P21/n, a=1.110 17(8) nm, b=0.984 01(7) nm, c=1.344 53(10) nm, β=102.053 0(10)°, V=1.436 41(18) nm3, Dc=1.715 g·cm-3, Z=2, F(000)=742. The complex is mononuclear and the coordination number of central ion Ce(Ⅲ) is 10. CCDC: 738798. | |||||||||
| Keywords: lanthanide rare earth complexes synthesis characterization crystal structure | |||||||||
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| 林 苗,杨 勇,咸春颖.镧系稀土四元配合物Ln(NO3)2(phen)2(CH3COCHCOCH3)的合成及晶体结构表征[J].无机化学学报,2010,26(1):120-125. | |||||||||
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