| Syntheses and Crystal Structures of Lanthanide Complexes of New 15-Membered Macrocyclic Ligands with Three Pendant Acetato Groups |
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| 作者姓名： | 姚英明 沈琪 黄永德 |
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| 作者单位： | [1]DepartmentofChemistryandChemicalEngineering,SuzhouUniversity,Suzhou,Jiangsu215006,China [2]DepartmentofChemistry,TheUniversityofHongKong,PokfulamRoad,HongKong,China |
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| 基金项目： | theNationalNaturalScienceFoundationofChina (No .2 0 0 72 0 2 7) |
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| 摘 要： | Two new 15-memhored fimctionalized macrocycles, dioxo-polyazacydoalkanes with three pendant acetato groups, have been synthesized by the condensation reaction of DTPA dianhy-dride (DTPA = diethylenetrlamlnepentaacetic acid ) with 1,2-di-amlnopropane, ( 15-DTPA-1, 2-pn), or 1, 2-diaminocydohex-ane, (15-DTPA-1,2-cy). Their lanthanide complexes Ln ( 15-DTPA-1,2-pn)(H2O)]2Ln= Eu (1), Gd (2)] and Ln(15-DTPA-1,2-cy)(H2O)]2Ln= Eu (3), Gd (4)] were also pre-pared. Single crystal X-ray diffraction analyses of complexes 2 and 4 show that they have dimeric structures in solid state;each metal ion is nine-coordinated in a distorted tricapped-trig-onal prism. In complex 4, the coexistence of two diastereoiso-meric molecules in the crystal lattice was observed.
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| 关 键 词： | 合成 晶体结构 镧系配合物 大环配合物 X射线衍射分析 乙酰基团 |
Syntheses and Crystal Structures of Lanthanide Complexes of New 15-Membered Macrocyclic Ligands with Three Pendant Acetato Groups |
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| YAO,Ying-Ming,a SHEN,Qi a WONG,Wing-Tak b a.Syntheses and Crystal Structures of Lanthanide Complexes of New 15-Membered Macrocyclic Ligands with Three Pendant Acetato Groups[J].Chinese Journal of Chemistry,2003,21(9):1213-1218. |
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| Authors: | YAO Ying-Ming a SHEN Qi a WONG Wing-Tak b a |
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| Institution: | YAO,Ying-Ming,a SHEN,Qi a WONG,Wing-Tak b a Department of Chemistry and Chemical Engineering,Suzhou University,Suzhou,Jiangsu 215006,China b Department of Chemistry,The University of Hong Kong,Pokfulam Road,Hong Kong,China |
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| Abstract: | Two new 15-membered functionalized macrocycles, dioxo~polyazacycloalkanes with three pendant acetato groups, have been synthesized by the condensation reaction of DTPA dianhydride (DTPA=diethylenetriaminepentaacetic acid) with 1,2-diaminopropane, (15-DTPA-1,2-pn), or 1,2-diaminocyclohexane, (15-DTPA-1,2-cy). Their lanthanide complexes Ln(15-DTPA-1,2-pn)(H 2O)] 2 Ln=Eu (1), Gd (2)] and Ln(15-DTPA-1,2-cy)(H 2O)] 2 Ln=Eu (3), Gd (4)] were also prepared. Single crystal X-ray diffraction analyses of complexes 2 and 4 show that they have dimeric structures in solid state; each metal ion is nine-coordinated in a distorted tricapped-trigonal prism. In complex 4, the coexistence of two diastereoisomeric molecules in the crystal lattice was observed. |
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| Keywords: | macrocyclic ligand lanthanide complex synthesis crystal structure |
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