| 1,8-萘啶氮氧化物钪(Ⅲ)配合物的合成与性质 |
| SYNTHESES AND CHARACTERIZATION OF 1,8-NAPHTHYRIDINE-N-OXIDE SCANDIUM(Ⅲ) COMPLEXES |
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| 摘要: 在非水介质中合成出硝酸钪、高氯酸钪、硫氰酸钪和氯化钪与1,8-萘啶氮氧化物生成的固体配合物。通过元素分析、红外光谱、荧光光谱、摩尔电导测定和差热热重分析等方法研究了配合物的组成和性质。 |
| 关键词: 钪 1,8-萘啶氮氧化物 配合物 |
| 基金项目: 国家自然科学基金资助项目 |
| Abstract: The complexes of scandium (Ⅲ) salts with 1,8-naphthyridine-N-oxide (napyo) having the composition Sc(napyo)2(NO3)3,Sc(napyo)4(ClO4)3,Sc(napyo)4(SCN)3 and Sc(napyo)3Cl3 have been synthesized in nonaqueous medium. The IR spectra of the complexes provide two evidences for the coordination of napyo with scandium ions: one is that the v(N-O) band is shifted from 1236cm-1 in the free ligand to 1208-1210cm-1 region in the complexes and the other is that the new bands assigned to M-O (napyo) stretch (389-393cm-1) are observed in the spectra of complexes. When irradiated with ultraviolet lamp (254nm) the scandium nitrate and pcrchlorate complexes exhibit intense blue fluorescence but the scandium chloride and thiocyanate complexes exhibit no fluorescence. It is known from the fluorescence spectra that the strongest fluorescence peak wavelengths are 444,449 and 455nm and the fluorescence intensities are 0.106,5.0 and 1.4 for napyo,Sc(napyo)2(NO3)3and Sc(napyo)4(ClO4)3 respectively. The molar conductance data measured in nitromethane solution indicate that the complexes of scandium chloride,perchlorate,thiocyanate and nitrate are 1:1,1:3,1:3 electrolyte and nonelectrolyte respectively. The results of DTA-TG analyses show that all the complexes are stable below 240℃. |
| Keywords: scandium 1,8-naphthyridine-N-oxide complex |
| 投稿时间：1987-07-26 |
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| 甘新民,唐宁,张文军,谭民裕.1,8-萘啶氮氧化物钪(Ⅲ)配合物的合成与性质[J].无机化学学报,1989,5(3):17-21. |
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