Synthesis, properties, and reactivity of the stilbene complex of ytterbium (PhCH=CHPh)Yb(THF)2. Crystal structure of (2,4,6-But3C6H2O) 2Yb(THF)3

Article abstract of DOI:10.1007/BF02494295

The stilbene complex of ytterbium (PhCH=CHPh)Yb(THF)₂ (1) was prepared by the reaction of YbI₂(THF)₂ with a twofold excess of (PhCH=CHPh)^-+ Li⁺. Based on the data of IR and ESR spectroscopy and on the results of magnetic measurements, compound 1 was characterized as a complex of divalent ytterbium with the stilbene dianion. The reactivity of complex 1 toward different types of reagents was studied. The structure of the product of the reaction of 1 with 2,4,6-tri(tert-butyl)phenol (2,4,6-Bu^t₃C₆H₂O) ₂Yb(THF)₃ was established by X-ray diffraction analysis.