Coordination polymers with end-on azido and pyridine carboxylate N-oxide   bridges displaying long-range magnetic ordering with low dimensional   character

doi:10.1021/ic060225w

CORC > 北京大学 > 化学与分子工程学院

	Coordination polymers with end-on azido and pyridine carboxylate N-oxide bridges displaying long-range magnetic ordering with low dimensional character
	He, Zheng ; Wang, Zhe-Ming ; Gao, Song ; Yan, Chun-Hua
刊名	inorganic chemistry
	2006
关键词	SINGLE-MOLECULE MAGNETS MONTE-CARLO-SIMULATION CRYSTAL-STRUCTURES STRUCTURAL-CHARACTERIZATION MAGNETOSTRUCTURAL CORRELATIONS COPPER(II) COMPLEXES SUPRAMOLECULAR STRUCTURES SPECTROSCOPIC PROPERTIES NEUTRON-DIFFRACTION HEISENBERG MODEL
DOI	10.1021/ic060225w
英文摘要	A series of 2D and one 3D transition-metal-azido coordination polymers with pyridine carboxylate N-oxide, isonicotinate N-oxide (INO), and nicotinate N-oxide (NNO) as the coligands were synthesized by a hydrothermal method and structurally and magnetically characterized. These complexes have the formulas [M(L)(N-3)(H2O)](n) (L = INO and M = Mn, 1(.)Mn; Co, 2(.)Co; Ni, 3(.)Ni and L = NNO and M = Mn, 4(.)Mn; Co, 5(.)Co; Ni, 6(.)Ni) and [Cu(L)(N-3)(H2O)(0.5)](n) (L = INO, 7(.)Cu; NNO, 8(.)Cu). All complexes consist of end-on azido and syn-syn carboxylato mixed-bridged M-N-3/COO chains that are further linked by the pyridine N-oxide group of the INO or NNO to give rise to 2D layered structures for 1(.)Mn, 2(.)Co, 3(.)Ni, 4(.)Mn, 5(.)Co, 6(.)Ni, and 8(.)Cu and a 3D framework for 7(.)Cu. The high-temperature magnetic susceptibilities are dominated by low-dimensional behavior while long-range ordering sets in at low temperatures. The Mn complexes are antiferromagnets, and the others are metamagnets. In addition, 5(.)Co exhibits slow magnetic relaxation behavior at low temperatures. The metamagnetism in each case is due to strong intrachain ferromagnetic interactions and weak interchain antiferromagnetic ones.; Chemistry, Inorganic & Nuclear; SCI(E); 117; REVIEW; 17; 6694-6705; 45
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/251691]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	He, Zheng,Wang, Zhe-Ming,Gao, Song,et al. Coordination polymers with end-on azido and pyridine carboxylate N-oxide bridges displaying long-range magnetic ordering with low dimensional character[J]. inorganic chemistry,2006.
APA	He, Zheng,Wang, Zhe-Ming,Gao, Song,&Yan, Chun-Hua.(2006).Coordination polymers with end-on azido and pyridine carboxylate N-oxide bridges displaying long-range magnetic ordering with low dimensional character.inorganic chemistry.
MLA	He, Zheng,et al."Coordination polymers with end-on azido and pyridine carboxylate N-oxide bridges displaying long-range magnetic ordering with low dimensional character".inorganic chemistry (2006).