A novel chloro-bridged tetranuclear cadmium(II) cluster with pyridyl-substituted nitronyl nitroxide: structure and magnetic properties

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Title:	A novel chloro-bridged tetranuclear cadmium(II) cluster with pyridyl-substituted nitronyl nitroxide: structure and magnetic properties
Authors:	魏和祥;Wei, Ho-hsiang;Lee, Chin-Jhan;Lee, Gene-Hsiang;Wang, Yu
Contributors:	淡江大學化學學系
Keywords:	Cadmium compound;Nitronyl nitroxide;Crystal structure;Magnetic properties
Date:	2000-12
Issue Date:	2009-12-01
Publisher:	Elsevier
Abstract:	A tetranuclear cadmium(II) complex of 2(2-pyridyl)-4,4,5,5-tetramethyl-4,5-dihydro-1 H-imidazol-1-oxy 3-N-oxide (NIToPy) with CdCl2,[Cd4Cl8(NIToPy)4], has been structurally and magnetically characterized. The structure is based on a novel chloro-bridged tetranuclear cadmium quasi-cubane cluster, in which each cadmium atom is chelated by one NIToPy radical, and coordinated with four bridging chlorine atoms. The temperature dependence of the magnetic susceptibility measurements shows a weak ferromagnetic coupling between the radicals. An excellent simulation of the experimental data with the prism type four spins Hamiltonian H=−2J1(S1S2+S2S3+S3S4+S1S4)−2J2S2S4 obtained the parameters: Full-size image (<1 K), and g=2.04.
Relation:	Inorganic Chemistry Communications 3(12), pp.690-693
DOI:	10.1016/S1387-7003(00)00178-7
Appears in Collections:	[Graduate Institute & Department of Chemistry] Journal Article

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