A manganese (II) dimer bearing the reduced derivatives of nitronyl nitroxides

We report the synthesis, magnetic EPR and conducting properties of a new manganese complex [MnII(hfac)2(IMHPhOPh)]2[MnII(hfac)3](IMH2PhOPh) (1), containing reduced forms (IMHPhOPh IMH2PhOPh) NIT-PhOPh radical (NIT-PhOPh = 2,4‘-benzoxo-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide). Magnetic susceptibility studies reveal presence weak antiferromagnetic exchange interactions between metal ions, within [MnII(hfac)2(IMHPhOPh)]2 unit. The spectra 1 exhibit simultaneous contributions both monomeric [MnII(hfac)3] dimeric species. Conductivity measurements shown that electrical conduction is dominated by Ohm’s law, with conductance value 1.3(6)×10-9 S/cm.