Synthesis, characterisation and reactivity of the first diphosphaalkyne

摘要

The first diphosphaalkyne, P≡CC(C_6H_4)_3CC≡P, has been synthesised and structurally characterised; its reaction with [Pt(C_2H_4)(PPh_3)_2] affords the complex, [{(PPh_3)_2-Pt}_2{μ-η~2:η~2-P≡CC(C_6H_4)_3CC≡P}], whilst its treatment with [RuHCl(CO)(PPh_3)_3] yields the bis-ruthenium phosphaalkenyl complex, [{(PPh_3)_2(CO)ClRu}_2{μ-P=C(H)-C(C_6H_4)_3CC(H)=P}].