中文摘要：

Five novel complexes of formula [Ln(hfac)3] · BNPhOM, where Ln = Gd, Ho, Dy, Y, Er; hfac = hexfluoracetylaceto-nate; BNPhOM = 1,3-[bis-2,2’-(4,4,5,5-tetramethyl-4,5-di-hydro-1H-imidazolyl-1-oxyl-3-oxide)phenoxy] propane, have been prepared and characterized by elemental analysis, molar conductances, IK and electronic spectra. The temperature dependence of the magnetic susceptibility for Gd( III) and radical was measured (2-300 K). The observed data were successfully simulated giving the exchange integral J = 0.28 cm-1, J’ = - 0.33 cm-1. These results indicate a weak ferromagnetic spin exchange interaction between Gd(III) ion and the radical and a weak antiferromagnetic spin exchange interaction between the radical and radical.

英文摘要：

Five novel complexes of formula [Ln(hfac)3] · BNPhOM, where La = Gd, Ho, Dy, Y, Er; Mac = hexfluoracetylacetonate; BNPhOM=1,3-[bis-2,2′,-(4,4,5,5-tetramethyl-4,5-di-hydro-1H-imidazolyl-1-oxyl-3-oxide) phenoxy] propane, have been prepared and characterized by elemental analysis, molar conductances, IR and electronic spectra. The temperature dependence of the magnetic susceptibility for Gd(III) and radical was measured (2—-300 K). The observed data were successfully simulated giving the exchange integral J = 0.28 cm?1, J' = - 0.33 cm?1. These results indicate a weak ferromagnetic spin exchange interaction between Gd(III) ion and the radical and a weak antiferromagnetic spin exchange interaction between the radical and radical.