| 镧系元素硝酸盐与缩二脲固体配合物的合成及性质 |
| SYNTHESES AND PROPERTIES OF SOLID COMPLEXES BETWEEN LANTHANIDE NITRATES AND BIURET |
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| 摘要: 我们在无水乙醇中,合成了除钜以外的十四种镧系元素硝酸盐与缩二脲的固体配合物。并用元素分析、DTA-TG、X-射线粉末衍射、红外光谱以及电导等手段研究了这些配合物的组成和性质。基于元素分析结果,红外光谱中M-O键、配位NO3-及游离NO3-的伸缩振动的存在,以及摩尔电导值,可建议它们的化学式分别为: [LnB3(NO3)2]·NO3 (Ln=La-Sm,B-缩二脲) [LnB4(NO3)2)·NO3 (Ln=Eu-Lu) |
| 关键词: 镧系元素 缩二脲 合成 配合物 |
| 基金项目: |
| Abstract: Only the investigation of Ln(biuret)3Cl3·3H2O(Ln = Pr, Nd) by A. Se-minara and co-workers was reported prior to our work. We have now prepared fourteen complexes of all lanthanide nitrates (except pm) with biuret, using ethyl alcohol as reaction medium. These new synthesized complexes have been characterized by means of elemental analysis, IR spectrum, conductivity, differential thermal analysis (DTA), thermogravi-metry (TG) and X-ray powder diffraction.Based on the results of elemental analysis, the existence of M-O vibration band, coordinated NO3 and free NO3- in IR spectrum as well as the conductance measurements, the new synthesized complexes were proposed to have following formulasCLnB8(NO3)2]NO3 (where Ln = La-Sm, B= biuret) [LnB4(NO8)23NQs (Ln = Eu-Lu) They are stable in dry air. |
| Keywords: lanthanide element biuret complex synthesis |
| 投稿时间：1985-11-11 |
| 摘要点击次数: 1795 |
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| 翟应离,唐宁,谭民裕,余光明,王定博.镧系元素硝酸盐与缩二脲固体配合物的合成及性质[J].无机化学学报,1986,2(3):88-95. |
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