Tetranuclear copper complexes with new beta-diketone and beta-iminoketone-containing ligands
Yang, LQ; Wu, JG; Ju X(巨新); Ju, X
刊名TRANSITION METAL CHEMISTRY
1999
卷号24期号:3页码:340-345
学科分类Chemistry
DOI10.1023/A:1006952117118
通讯作者Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Factory, Beijing 100039, Peoples R China
文章类型Article
英文摘要Novel tetranuclear copper complexes, Cu-4(OH)(2)(ClO4)(3) (HA). H2O (1) and Cu-4(ClO4)(5)(H3B). 3H(2)O (2), were synthesized by reacting 1,5-bis(1'-phenyl-3'-methyl-5'-pyrazolone-4')-1 ,5-pentanedione with 1,3-propanediamine and 2-hydroxyl-1,3-propanediamine in the presence of a template reagent copper ion. New [2+2] type open cyclic multidentate ligands are also obtained from the reaction (H4A and H6B stand for new compounds from 1,3-propanediamine and 2-hydroxyl-1,3-propanediamine, respectively). They each contain five C = O, three C = N and one NH2 groups. The complexes were characterized by elemental analyses, conductivity, FT-i.r. (micro-i.r., deconvolution technique), FAB-MS, e.s.r., electronic spectra and extended X-ray absorption fine structure (EXAFS). Copper ions in (1) are basically four coordinate with tetragonal geometry. The average coordination bond distances of Cu-N and Cu-O are 1.91 Angstrom and 2.05 Angstrom. In (2), copper ions are primarily five coordinate with square-based pyramidal geometry. The average coordination bond distances of Cu-N and Cu-O are 1.93 Angstrom and 2.08 Angstrom. Four copper atoms in molecules may be arranged tetragonally. Both the ligand field and the coordination bonds in complex (1) are stronger than those in (2). Investigations on variable temperature susceptibilities show that some antiferromagnetic exchange interaction exist in the complexes. The plots of chi(-1) versus T obey the Curie-Weiss law only at low temperature. Preliminary results of a bioassay indicate that the two complexes have some antitumour activity in vitro.
类目[WOS]Chemistry, Inorganic & Nuclear
研究领域[WOS]Chemistry
原文出处查看原文
语种英语
WOS记录号WOS:000080544900019
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237056
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
作者单位中国科学院高能物理研究所
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Yang, LQ,Wu, JG,Ju X,et al. Tetranuclear copper complexes with new beta-diketone and beta-iminoketone-containing ligands[J]. TRANSITION METAL CHEMISTRY,1999,24(3):340-345.
APA Yang, LQ,Wu, JG,巨新,&Ju, X.(1999).Tetranuclear copper complexes with new beta-diketone and beta-iminoketone-containing ligands.TRANSITION METAL CHEMISTRY,24(3),340-345.
MLA Yang, LQ,et al."Tetranuclear copper complexes with new beta-diketone and beta-iminoketone-containing ligands".TRANSITION METAL CHEMISTRY 24.3(1999):340-345.
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