[cis-Pt(C ₆ F ₅ ) ₂ (CCPh) ₂ ] ²– as a double alkynyl transfer reagent. Synthesis and characterization of the Ir( III )-Pt( II ) Tweezer complex {[(η ⁵ -C ₅ Me ₅ )(PEt ₃ )Ir(CCPh) ₂ ]Pt(C ₆ F ₅ ) ₂ }

[cis-Pt(C6F5)2(CCPh)2]2– reacts with [Ir(C5Me5)(PEt3)(Me2CO)2](ClO4)2, via a double alkynylation process, yielding {[η5-C5Me5)(PEt3) Ir(CCPh)2]Pt(C6F5)2} in which the alkynyl groups are σ bonded to the iridium centre and π bonded to the platinum one.