| Abstract: | The reduced lanthanide iodides of the composition LnIx (Ln = Sc, Y, La, Ce, Pr, Gd, Ho, and Er; x < 3) were obtained by the reaction of an excess of the appropriate metal with iodine at high temperatures. The diamagnetism of the Sc, Y, and La derivatives indicates the trivalent state of the metals in these products. In contrast to the diiodides of Nd(II), Dy(II), and Tm(II), the isolated solids do not dissolve in THF, DME, or liquid ammonia. Despite of their insolubility in THF, all these products readily react in this medium with phenol or alcohols to give the corresponding phenoxy‐ or alkoxylanthanide diiodides ROLnI2(THF)x (R = Ph, i‐C3H7, t‐Bu; x = 2, 3, or 5) in yields up to 55 %. Their interactions with cyclopentadiene in THF afford the complexes CpLnI2(THF)3 with yields up to 60 %. From the reaction of LaIx with 2, 2'‐bipyridine (bipy), the complex LaI2(bipy)2(THF)2 was isolated. Triphenylcarbinol, stilbene, naphthalene, and anthracene are inert towards the obtained substances. |
