| Studies on some lanthanide（Ⅲ） complexes with 4-hydroxyantipyrine |
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| 引用本文： | G. Rijulal P. Indrasenan. Studies on some lanthanide（Ⅲ） complexes with 4-hydroxyantipyrine[J]. 中国稀土学报(英文版), 2008, 26(3): 315-319. DOI: 10.1016/S1002-0721(08)60087-3 |
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| 作者姓名： | G. Rijulal P. Indrasenan |
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| 作者单位： | Department of Chemistry, University of Kerala, Kariavattom Campus, Trivandrum -695 581, Kerala, India |
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| 基金项目： | Project supported by Ph.D. programme at the Department of Chemistry, University of Kerala, Kariavattom Campus, Trivandrum-695 581 Kerala, India |
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| 摘 要： | Seven new lanthanide（Ⅲ） complexes with 4-hydroxyantipyrine were synthesized. These complexes were characterized by elemental analysis, molar conductance, magnetic moment measurements, FT-IR, electronic and 1HNMR spectra, X-ray powder diffraction, and thermogravimetric studies. The ligand, 4-hydroxyantipyrine （hap）, contained carbonyl oxygen and hydroxyl oxygen as potential donor sites. On coordination, deprotonation occurred and as a result, hap acted as a monobasic bidentate ligand. A coordination number 6 was assigned to the lanthanide（Ⅲ） ions in these complexes with orthorhombic structure. All the complexes were thermally stable-150℃ and underwent decomposition in three stages with the formation of Ln2O3 as the final residues.
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| 关 键 词： | 稀土元素 镧系元素 合成方法 稀土 |
| 收稿时间： | 2007-06-22 |
| 修稿时间： | 2007-07-27 |
Studies on some lanthanide(III) complexes with 4-hydroxyantipyrine |
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| G. Rijulal,P. Indrasenan. Studies on some lanthanide(III) complexes with 4-hydroxyantipyrine[J]. Journal of Rare Earths, 2008, 26(3): 315-319. DOI: 10.1016/S1002-0721(08)60087-3 |
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| Authors: | G. Rijulal P. Indrasenan |
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| Affiliation: | aDepartment of Chemistry, University of Kerala, Kariavattom Campus, Trivandrum -695 581, Kerala, India |
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| Abstract: | Seven new lanthanide(III) complexes with 4-hydroxyantipyrine were synthesized. These complexes were characterized by elemental analysis, molar conductance, magnetic moment measurements, FT-IR, electronic and 1HNMR spectra, X-ray powder diffraction, and thermogravimetric studies. The ligand, 4-hydroxyantipyrine (hap), contained carbonyl oxygen and hydroxyl oxygen as potential donor sites. On coordination, deprotonation occurred and as a result, hap acted as a monobasic bidentate ligand. A coordination number 6 was assigned to the lanthanide(III) ions in these complexes with orthorhombic structure. All the complexes were thermally stable～150℃ and underwent decomposition in three stages with the formation of Ln2O3 as the final residues. |
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| Keywords: | synthesis lanthanide(III) complexes 4-hydroxyantipyrine rare earths |
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