Heterobimetallic complexes based on [(Tp)Fe(CN)(3)](-) : Syntheses,   crystal structures and magnetic properties

doi:10.1002/ejic.200400121

CORC > 北京大学 > 化学与分子工程学院

	Heterobimetallic complexes based on [(Tp)Fe(CN)(3)](-) : Syntheses, crystal structures and magnetic properties
	Wang, S ; Zuo, JL ; Zhou, HC ; Song, Y ; Gao, S ; You, XZ
刊名	欧洲无机化学杂志
	2004
关键词	chain structures cyanide ligands iron magnetic properties polynuclear complexes PRUSSIAN BLUE ANALOGS HEXACYANOMETALATE MOLECULAR CHEMISTRY VERSATILE BUILDING-BLOCK METAL-CYANIDE CLUSTERS = HYDROTRIS(1-PYRAZOLYL)BORATE HETEROMETALLIC SYSTEMS NUCLEARITY SPIN TEMPERATURE TRANSITION
DOI	10.1002/ejic.200400121
英文摘要	With the anionic precursor [(Tp)Fe-III (CN)(3)](-) [1; Tp: hydro-tris (pyrazolyl)borate] as a building block, two trinuclear complexes, [(Tp)(2)Fe-2(III)(CN)(6)Mn(CH3OH)(4)](.)2CH(3)OH (2), [(Tp)(2)Fe-2(III)(CN)(6)Ni(cyclam)](.)2H(2)O (3; cyclam: 1,4,8,11-tetraazacyclotetradecane) and a one-dimensional polymer, [(Tp)Fe-III(CN)(3)Cu(dien)](ClO4H2O)-H-. (4; dien: diethylenetriamine), have been synthesized and structurally characterized. In complex 2, each of the two [(Tp)Fe(CN)31- units binds through one of its three cyanide groups to a central [Mn(CH3OH)(4)](2+) core. In complex 4, a zigzag chain is formed by combining [TpFe(CN)(3)](-) and [Cu(dien)](2+) fragments alternately through cyano bridges. The magnetic properties of complexes 2-4 have been investigated in the temperature range 2-300 K. A weak antiferromagnetic interaction between the Mn-II and Fe-III ions has been found in complex 2. The magnetic data of 2 can be fitted with the isotropic Hamiltonian H = -2J((S) over cap (.)(1)(S) over cap (2) + (S) over cap (.)(2)(S) over cap (3)) - 2J' (S) over cap (.)(1)(S) over cap (3,) where J and J' are the intramolecular exchange coupling parameters between adjacent and peripheral spin carriers, respectively. This leads to values of J = -2.19 cm(-1) and g = 2.13. The same fitting method was applied to complex 3 to give values of J = 17.2 cm(-1) and g = 2.37, showing that there is a ferromagnetic interaction between the Fe-III and Ni-II ions. The 1-D chain of 4 is treated as alternating uniform Fe-Cu dimers with different intradimeric (J(d)) and interdimeric (J(c)) exchange constants, leading to Jd = 10.9 cm(-1), J(c) = 1.29 cm(-1) and g = 2.54. (C)Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004); Chemistry, Inorganic & Nuclear; SCI(E); 50; ARTICLE; 18; 3681-3687
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/254071]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wang, S,Zuo, JL,Zhou, HC,et al. Heterobimetallic complexes based on [(Tp)Fe(CN)(3)](-) : Syntheses, crystal structures and magnetic properties[J]. 欧洲无机化学杂志,2004.
APA	Wang, S,Zuo, JL,Zhou, HC,Song, Y,Gao, S,&You, XZ.(2004).Heterobimetallic complexes based on [(Tp)Fe(CN)(3)](-) : Syntheses, crystal structures and magnetic properties.欧洲无机化学杂志.
MLA	Wang, S,et al."Heterobimetallic complexes based on [(Tp)Fe(CN)(3)](-) : Syntheses, crystal structures and magnetic properties".欧洲无机化学杂志 (2004).