Divalent compounds of thulium, neodymium and dysprosium

NdI2 and DyI2 were obtained by burning of a mixture of Ln and I-2 Dissolving of the compounds in THF at low temperature allowed preparation of the Firs molecular iodides of Nd(II) and Dy(II), NdI2(THF)(5), DyI2(THF)(5), and DyI2(THF)(3). It was found that reduction of ROTmI2(THF)(3) (R = t-Bu, Ph) by sodium in THF affords TmI2(THF)(5) The reaction Cp*2TmI(THF) with Na in DME gives an unusual complex {Na(mu-MeO)(2)TmCp*(mu-Cp*)Na(mu-DME)(2)Na(mu-Cp*)Cp*Tm(mu-MeO)(2)Na(mu DME)}(n). The structure of the compound is discussed.