Synthesis, characterization and magnetic study of mu-oxamido-bridgedcopper(II)-lanthanide(III) heterobinuclear complexes

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	Synthesis, characterization and magnetic study of mu-oxamido-bridgedcopper(II)-lanthanide(III) heterobinuclear complexes
	Li, YT; Yan, CW; Wang, HD
	2000
发表期刊	POLISH JOURNAL OF CHEMISTRY
ISSN	0137-5083
卷号	74 期号:12 页码:1655-1663
摘要	Tell new mu -oxamido-bridged copper(II)-lanthanide(III) heterobinuclear complexes described by the overall formula Cu(Br(4)Obbz)Ln(phen)(2)NO3 (Ln = Y, La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er), where Br(4)obbz denotes the oxamido-N,N'-bis(3,5-dibromobenzoato) and phen represents 1,10-phenanthroline, have been synthesized and characterized by the elemental analyses, magnetic moments (at room temperature), molar conductivity measurements and spectroscopic (IR, UV, ESR) studies. The temperature dependence of the magnetic susceptibility of Cu(Br(4)obbz)Gd(phen)(2)NO3 complex was measured over the range 4.2-300 K. The least-squares fit of the experimental susceptibilities based on the spin Hamiltonian operator, (H) over cap=-2J (S) over cap (1).(S) over cap (2), yielded J= +3.7 cm(-1). This result indicates the presence of a weak ferromagnetic spin-exchange interaction between Gd(III) and Cu(II) ions. Tell new mu -oxamido-bridged copper(II)-lanthanide(III) heterobinuclear complexes described by the overall formula Cu(Br(4)Obbz)Ln(phen)(2)NO3 (Ln = Y, La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er), where Br(4)obbz denotes the oxamido-N,N'-bis(3,5-dibromobenzoato) and phen represents 1,10-phenanthroline, have been synthesized and characterized by the elemental analyses, magnetic moments (at room temperature), molar conductivity measurements and spectroscopic (IR, UV, ESR) studies. The temperature dependence of the magnetic susceptibility of Cu(Br(4)obbz)Gd(phen)(2)NO3 complex was measured over the range 4.2-300 K. The least-squares fit of the experimental susceptibilities based on the spin Hamiltonian operator, (H) over cap=-2J (S) over cap (1).(S) over cap (2), yielded J= +3.7 cm(-1). This result indicates the presence of a weak ferromagnetic spin-exchange interaction between Gd(III) and Cu(II) ions.
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/2370
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	Li, YT,Yan, CW,Wang, HD. Synthesis, characterization and magnetic study of mu-oxamido-bridgedcopper(II)-lanthanide(III) heterobinuclear complexes[J]. POLISH JOURNAL OF CHEMISTRY,2000,74(12):1655-1663.
APA	Li, YT,Yan, CW,&Wang, HD.(2000).Synthesis, characterization and magnetic study of mu-oxamido-bridgedcopper(II)-lanthanide(III) heterobinuclear complexes.POLISH JOURNAL OF CHEMISTRY,74(12),1655-1663.
MLA	Li, YT,et al."Synthesis, characterization and magnetic study of mu-oxamido-bridgedcopper(II)-lanthanide(III) heterobinuclear complexes".POLISH JOURNAL OF CHEMISTRY 74.12(2000):1655-1663.