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合成了一个新颖的氮氧自由基配体,并用该配体合成了3例未见文献报道的氮氧自由基-稀土三自旋单核配合物Ln(hfac)3(NIT-Ph-4-OCHCH3CH3)2(Ln=Gd(1),Tb(2),Dy(3);hfac=六氟乙酰丙酮;NIT-Ph-4-OCHCH3CH3=4,4,5,5-四甲基-2-(4′-异丙氧基苯基)-咪唑啉-3-氧化-1-氧基自由基)。单晶结构分析表明配合物1、2、3拥有相似的自由基-稀土-自由基单核结构。对配合物的磁性测试结果表明自由基与稀土之间存在着铁磁相互作用。自由基与自由基之间存在着反铁磁相互作用。
A novel nitroxide free radical ligand was synthesized and synthesized using this ligand. Three unreported nitroxide-rare earth tri-spin mononuclear complex Ln (hfac) 3 (NIT-Ph-4- OCHCH3CH3) 2 (Ln = Gd (1), Tb (2), Dy (3); hfac = hexafluoroacetylacetone; NIT-Ph-4-OCHCH3CH3 = 4,4,5,5-tetramethyl-2- (4’-isopropoxyphenyl) -imidazoline-3-oxide-1-oxyl free radical). Single crystal structure analysis showed that complexes 1, 2 and 3 have similar free radical-rare earth-radical mononuclear structure. Magnetic test results show that there is a ferromagnetic interaction between free radicals and rare earths. Anti-ferromagnetic interactions exist between free radicals and free radicals.