Synthesis and magnetic properties of a 4-(2′-pyrimidyl)-1,2,3,5-dithiadiazolyl dimanganese complex
作者:Michael Jennings、Kathryn E. Preuss、Jian Wu
DOI:10.1039/b512312g
日期:——
A spin-bearing bis-bidentate ligand, designed from a pyrimidyl-substituted R-CN2S2 neutral radical, is used to co-ordinate two Mn(II) metal centres yielding a thermally stable complex with antiferromagnetic coupling between the ligand-centred spin and the metal-centred spins, and thus an overall ferrimagnetic coupling scheme with a ground state S = 9/2.
Metal Complexes of Bridging Neutral Radical Ligands: pymDTDA and pymDSDA
作者:Jian Wu、Daniel J. MacDonald、Rodolphe Clérac、Ie-Rang Jeon、Michael Jennings、Alan J. Lough、James Britten、Craig Robertson、Paul A. Dube、Kathryn E. Preuss
DOI:10.1021/ic3000284
日期:2012.3.19
Metal complexes of the 4-(2′-pyrimidyl)-1,2,3,5-dithiadiazolyl (pymDTDA) neutral radical ligand and its selenium analogue (pymDSDA) are presented. The following series of metal ions has been studied using M(hfac)2 as the coordination fragment of choice (hfac = 1,1,1,5,5,5-hexafluoroacetylacetonato): MnII, CoII, NiII, and ZnII. The binuclear cobalt and nickel complexes of pymDTDA both exhibit ferromagnetic