Reaction of M(C5Me5)2(OEt2), M = Eu or Yb, with phenylacetylene; formation of mixed-valence Yb3(C5Me5)4(µ-C
CPh)4 and Eu2(C5Me5)2(µ-C
CPh)2(tetrahydrofuran)4
Abstract
Reaction of yb (C5Me5)2(OEt2) with PhCCH yields the mixed-valence complex Yb3(C5Me5)4(µ-C
CPh)4 though Eu(C5Me5)2(OEt2) reacts with PhC
CH to give the divalent complex Eu2(C5Me5)2(µ-C
CPh)2(thf)4(thf = tetrahydrofuran)after crystallization from thf.