Synthesis of bis(diphenylphosphinocyclopentadienyl) yttrium chloride complexes and heterodimetallic derivatives. X-ray structure of bis[(μ-chloro)bis(diphenylphosphinocyclopentadienyl) yttrium(III)]

Add time:07/12/2019    Source:sciencedirect.com

Reaction of lithium diphenylphosphinocyclopentadienide with YCl3 or YCl3(THF)3 and working lead to the formation of three yttrocene phosphines: the lithium metal adduct isolated as (Ph2PC5H4)2Y(μ-Cl)2Li(THF)2 · 0.5 LiCl (1), the chloride-bridged dimeric species {(Ph2PC5H4)2Y(μ-Cl)}2 (2), and the coordinated monometal species [(Ph2PC5H4)2YCl(THF)] (3). The X-ray structure of 2 is remarkable in that the crystal exhibits two independent chloride-bridged dimers that differ in the arrangement (syn, anti) of the diphenylphosphino groups.Chelation of phosphorus atoms to a molydenum carbonyl moiety is also reported.

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