Alkynyldiphenylphosphine d8 (Pt, Rh, Ir) complexes: contrasting behavior toward cis-[Pt(C6F5)2(THF)2].

作者： Jesús R. Berenguer , María Bernechea , Juan Forniés , Ana García , Elena Lalinde

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摘要: The synthesis and reactivity toward cis-[Pt(C6F5)2(THF)2] of several alkynylphosphine d8 complexes, [Pt(C6F5)(PPh2C⋮CPh)3](CF3SO3), 1, [M(COD)(PPh2C⋮CPh)2](ClO4) (M = Rh, 2, Ir, 3), [Pt(o-C6H4E2)(PPh2C⋮CPh)2] (E O, 6, S, 7), are reported. Whereas 1 gives rise to the diinserted product 8, which evolves in solution bis(diphenylphosphine)naphthalene-based mononuclear complex 9, analogous reactions with 2 or 3 give mixtures products. 6 7 afford binuclear heterobridged (μ-κE-o-C6H4E2)/(μ-κP:η2-PPh2C⋮CPh) 11 12 trinuclear (μ3-κ2EE‘-o-C6H4E2)/(μ-κP:η2-PPh2C⋮CPh)2 13 14 complexes.