122425-14-3Relevant academic research and scientific papers
Organolanthanoids. XVII. The Synthesis of Bis(diphenylphosphinocyclopentadienyl)ytterbium(II) and Derived Heterobimetallic Complexes . The X-Ray Crystal Structure of
Deacon, Glen B.,Forsyth, Craig M.,Patalinghug, Wyona C.,White, Allan H.,Dietrich, Andreas,Schumann, Herbert
, p. 567 - 582 (2007/10/02)
Reaction of diphenylphosphinocyclopentadiene with Yb(C6F5)2 or with ytterbium metal and Hg(C6F5)2 in tetrahydrofuran (thf) gives, after workup with toluene, the phosphinoytterbocene, .Treatment with thf or with N,N,N',N'tetramethylethane-1,2-diamine (tmen) yields (L = thf or L2 = tmen).Redox transmetallation between ytterbium metal and Tl(C5H4PPh2) in 1,2-dimethoxyethane (dme) gives thalliium metal and .The ytterbium-transition metal heterobimetallics *nPhMe have been prepared by reaction of with Ni(CO)2(PPh3)2, Mo(CO)4(nbd) (nbd = norbornadiene) or PtMe2(cod) (cod = cycloocta-1,5-diene) in toluene.Treatment of the heterobimetallics with tetrahydrofuran or a preparation in thf/toluene yields *thf, .The X-ray crystal structure of the last compound (triclinic, space group PI, a 14.514(5), b 13.565(1), c 10.866(5) Angstroem, α 93.11(2), β 104.65(3), γ 97.25(2) deg, U 2045 Angstroem3, Z 2, 5141 data refined to R 0.031) reveals eight-coordinate ytterbium with a pseudo-tetrahedral arrangement of two thf ligands and the cyclopentadienyl ring centroids of two η5-diphenylphosphinocyclopentadienide ligands.The latter are also bonded through phosphorus to the Ni(CO)2 group, resulting in tetrahedral stereochemistry for nickel.Infrared spectroscopy suggests the presence of ytterbium-isocarbonyl bonding in solid .
