| 希土离子单硫代二苯甲酰甲烷配合物的合成及性质研究 |
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| 引用本文： | 陈伯涛,谷云骊.希土离子单硫代二苯甲酰甲烷配合物的合成及性质研究[J].无机化学学报,1991(2). |
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| 作者姓名： | 陈伯涛 谷云骊 |
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| 作者单位： | 北京师范大学化学系 北京100875
(陈伯涛)，北京师范大学化学系 北京100875(谷云骊) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 本文合成了单硫代二苯甲酰甲烷(HTDBM)和三价希土离子及路易斯碱(Q)的Ln(TDBM)_4QH型配合物(Ln=除Ce外的La～Lu,Q=二乙基胺)。测定了它们的摩尔电导值、红外光谱,可见—紫外光谱,核磁共振谱.观察到配合物是通过硫原子、氧原子同时与Ln~(3+)离子配位.Ln-O键强于Ln-S键。在Nd~(3+)、Pr~(3+)、Ho~(3+)、Er~(3+)离子的该类配合物的可见吸收光谱中发现超灵敏跃迁现象。讨论了题述配合物作为核磁共振化学位移试剂的可能性.
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| 关 键 词： | 希土配合物 超灵敏跃迁 Ln-S键 核磁位移试剂 |
STUDY ON THE SYNTHESIS AND CHARACTERIZATION OF MONOTHIODIBENZOYL-METHANE CHELATES OF LANTHANIDES |
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| Chen Botao Gu Yunli.STUDY ON THE SYNTHESIS AND CHARACTERIZATION OF MONOTHIODIBENZOYL-METHANE CHELATES OF LANTHANIDES[J].Chinese Journal of Inorganic Chemistry,1991(2). |
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| Authors: | Chen Botao Gu Yunli |
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| Abstract: | Ln(TDBM)4QH (where Ln = La-Lu, except Ce; Q = (C2H5)2NH) chelates have been prepared. The elemental analysis, molar conductivities, IR-spectra, electronic spectra and NMR-spectra have been investigated. The lanthanide ions are coordinated through S atom and O atom. The Ln-O bond is stronger than Ln-S, which is proved by IR-spectra. The phenomena of hypersensitivity arising from Pr3+, Nd3+, Ho3+, Er3+ coordination compounds in acetone also have been studied. Possibility of use for NMR-chemical shift reagent have been confirmed. |
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| Keywords: | lanthanide complex hypersensitized transition Ln-S bond NMR-chemical shift reagent |
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