| 维生素B3与8-羟基喹啉稀土三元配合物的红外光谱研究 |
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| 引用本文： | 李爱桃,姚飞虹,李明,肖仕清,李强国,肖圣雄.维生素B3与8-羟基喹啉稀土三元配合物的红外光谱研究[J].湘南学院学报,2012(2):39-44. |
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| 作者姓名： | 李爱桃 姚飞虹 李明 肖仕清 李强国 肖圣雄 |
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| 作者单位： | 湘南稀贵金属配合物及其应用湖南省重点实验室;湘南学院化学与生命科学系 |
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| 基金项目： | 国家自然科学基金项目(20973145);湖南省教育厅科研项目(11C1171,07C701);湘南学院科研项目(2010Y061) |
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| 摘 要： | 通过对比红外光谱图,归属新型维生素B3(C6H5NO2,HL)与8-羟基喹啉(C9H7NO,Hhq)稀土配合物的特征吸收,发现HL的羧基完全脱质子以酸根的形式与稀土离子配位,吡啶环的氮原子未参加配位,Hq-的羟基氧和杂氮原子与RE3+离子双齿配位,形成五元螯环,结合元素分析与热重分析的结果,推测La、Ce和Nd的配合物...
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| 关 键 词： | 稀土 维生素B3 8-羟基喹啉 三元配合物 红外光谱 |
Study on Infrared Spectra of the Ternary Complexes of Rare Earth with Vitamin B3 and 8-Hydroxylquinoline |
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| Li Aitao,Yao Feihong,Li Ming,Xiao Shiqing,Li Qiangguo,Xiao Shengxiong.Study on Infrared Spectra of the Ternary Complexes of Rare Earth with Vitamin B3 and 8-Hydroxylquinoline[J].Journal of Xiangnan University,2012(2):39-44. |
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| Authors: | Li Aitao Yao Feihong Li Ming Xiao Shiqing Li Qiangguo Xiao Shengxiong |
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| Institution: | 1.Hunan Provincial Key Laboratory of Xiangnan Rare-Precious Metal Complexes and Applications,Chenzhou 423000,China;2.Department of Chemistry and Life Science,Xiangnan University,Chenzhou 423000,China) |
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| Abstract: | In this article,by comparing the characteristic bands of IR spectra of the new ternary rare earth with vitamin B3 and 8-hydroxyquinoline coordination complexes as well as those of their free ligands vitamin B3(C6H5NO2,HL) and 8-hydroxyquinoline(C9H7NO,Hhq),we have found that during the process of coordination,HL was bidentate-coordinated with rare earth ions(RE3+) through an acidic group which was formed by removing the proton,while the hydroxyl oxygen atom and heterocyclic nitrogen atom of hq-formed a five-membered chelate ring with RE3+ for coordination.From the results of elemental analysis and thermogravimetric analysis,we could speculate that there were two water molecules coordinated with RE3+ in the complexes.The results showed that the general molecular formula of the new ternary coordination complexes was REL2·hq]·2H2O(RE = La,Ce,and Nd;L= C6H4NO2-;hq = C9H7NO-) and SmL2·hq,their coordination number was eight and six, respectively. |
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| Keywords: | rare earth vitamin B3 8-hydroxylquinoline ternary complexes infrared spectra |
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