517863-81-9Relevant articles and documents
Specific chemical behavior of NdII and DyII iodides in reactions with aromatic compounds
Bochkarev,Fagin,Khoroshenkov
, p. 1909 - 1914 (2002)
Benzene, toluene, tert-butylbenzene, or biphenyl virtually do not react with NdI2 (1) or DyI2 (2) in THF at -20°C but appreciably accelerate the reactions of these salts with solvents, resulting in LnI3 and intractable mixtures of products of the general composition [LnI(H)(R)(THF)] (R are fragments of the THF molecule). The same effect is induced by the addition of diphenylmercury or tetraphenyltin to solutions of 1 or 2. Phenol easily oxidizes 1 and 2 to give at 0°C the PhOLnI 2(THF)x complexes (x = 3, 4) in 55-95% yields. At -90°C, iodide 2 is converted into a similar complex PhODyI 2(THF)4, whereas 1 gives a mixture of PhONdI 2(THF)4, (PhO)2NdI(THF)5, NdI 3(THF)3, and [NdI(H)R(THF)]. A plausible pathway of the reactions including the intermediate formation of extremely reactive monovalent lanthanide iodides LnI is discussed.
