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Rhodium(I) Complexes with a n1- Fluorenyl, P -Phosphanyl-Phosphorane Ligand
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The first example of a P-phosphanylphosphorane, Flu�PCy2−PCy2 (L2; Flu = 9-fluorenyl), has been easily prepared
by P-phosphination of lithiated 9-dicyclohexylphosphinofluorene (FluPCy2, L0) with chlorodicyclohexylphosphane. L2 constitutes a
new type of P(III)−P(V) organophosphorus compound, a σ3
λ3
−σ4
λ5 species that is stable under an inert atmosphere in the solid
state. The reaction of L2 with [Rh(diene)2]BR4 causes metalation of the benzylic carbon (C9) of fluorene, giving κ2
-C,P complexes
in which fluorene is coordinated in the η1 form. A complex with the weakly coordinating BArF anion has been isolated and fully
characterized, including its crystal structure obtained by X-ray diffraction.
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EUSAMIO, Javier, et al. Rhodium(I) Complexes with a n1- Fluorenyl, P -Phosphanyl-Phosphorane Ligand. Inorganic Chemistry. 2024. Vol. 63, num. 13820-13824. ISSN 0020-1669. [consulted: 25 of May of 2026]. Available at: https://hdl.handle.net/2445/227015