Crystal structures and magnetic properties of triple helical binuclear   complexes with bis(bidentate) diazine ligands

doi:10.1016/j.poly.2006.04.008

CORC > 北京大学 > 化学与分子工程学院

	Crystal structures and magnetic properties of triple helical binuclear complexes with bis(bidentate) diazine ligands
	Yue, Yan-Feng ; Gao, En-Qing ; Fang, Chen-He ; He, Zheng ; Bai, Shi-Qiang ; Yan, Chun-Hua
刊名	polyhedron
	2006
关键词	supramolecular self-assembly binuclear helicate bis(bidentate) diazine ligands crystal structures magnetism SPONTANEOUS RESOLUTION INEXPENSIVE APPROACH WEAK FERROMAGNETISM DINUCLEAR COMPLEXES SILVER(I) COMPLEXES STRANDED HELICATE PYRIDINALDAZINE NICKEL(II) MN(II) NI(II)
DOI	10.1016/j.poly.2006.04.008
英文摘要	Three triple helical binuclear complexes [Ni-2(L-1)(3)]center dot(ClO4)(4)center dot(H2O)(3) (1) (L-1 = 1,4-bis(2-pyridyl)-1-amino-4-methyl-2,3-diaza-1,3-butadiene), [Ni(L-2)(3)]center dot(ClO4)(4)center dot(H2O)(3) (2) (L-2 = 2,5-bis(2-pyridyl)-3,4-diaza-2,4-hexadiene) and [Mn-2(L-1)(3)]center dot(ClO4)(4)center dot(H2O)(3) (3) have been studied, where the L-1 ligand possesses a rotationally flexible single N-N bond. In complexes 1-3, the three bis(bidentate) diazine ligands wrap around two metal cations with a spiral conformation, leading to a triple helicate with C-3 symmetry. Magnetic investigations revealed that antiferromagnetic interactions are operative between the two metal ions linked by the triple diazine bridges, with J = -2.97 and -5.40 cm(-1) for 1 and 2, respectively. Variable temperature magnetic data for 3 indicates a weak ferromagnetic interaction between the two manganese(II) centers with J = 1.24 cm(-1). The X-ray powder diffraction of 3 is also discussed. (c) 2006 Elsevier Ltd. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000241020400016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Inorganic & Nuclear; Crystallography; SCI(E); 7; ARTICLE; 14; 2778-2784; 25
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/251358]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Yue, Yan-Feng,Gao, En-Qing,Fang, Chen-He,et al. Crystal structures and magnetic properties of triple helical binuclear complexes with bis(bidentate) diazine ligands[J]. polyhedron,2006.
APA	Yue, Yan-Feng,Gao, En-Qing,Fang, Chen-He,He, Zheng,Bai, Shi-Qiang,&Yan, Chun-Hua.(2006).Crystal structures and magnetic properties of triple helical binuclear complexes with bis(bidentate) diazine ligands.polyhedron.
MLA	Yue, Yan-Feng,et al."Crystal structures and magnetic properties of triple helical binuclear complexes with bis(bidentate) diazine ligands".polyhedron (2006).