Highly soluble Cu(i)-acetonitrile salts as building blocks for novel phosphorus-rich organometallic-inorganic compounds

Abstract

The synthesis of the air-stable and highly soluble Cu(I)-acetonitrile salts [Cu(CH₃CN)_3.5][FAl] (1) ([FAl] = FAl{OC(C₆F₁₀)(C₆F₅)}₃) and [Cu(CH₃CN)₄][TEF] (2) ([TEF] = Al{OC(CF₃)₃}₄) is presented. Compound 1 reacts with the organometallic polyphosphorus complexes [Cp₂Mo₂(CO)₄(η²-P₂)] (A) and [(Cp*Fe(η⁵-P₅)] (B) and salt 2 reacts with B to form one new (3) and three unprecedented (4–6) phosphorus-rich Cu(I) dimers with the general formulas [Cu₂(μ,η¹:η¹-A)₂(η²-A)₂][FAl]₂ (3), [Cu₂(μ,η¹:η¹-A)₂(η¹-CH₃CN)₄][FAl]₂ (4), [Cu₂(μ,η¹:η¹-B)₂(η¹-CH₃CN)₄][FAl]₂ (5) and [Cu₂(μ,η¹:η¹-B)₂(η¹-CH₃CN)₄][TEF]₂ (6).