The reactivity of [Au(CH2)2PPh2]2(1) with CCl4. The oxidative addition of CCl4 to a dimeric gold ylide complex to give AuII and AuIII CCl3 adducts. The X-ray crystal structure of [Au(CH2)2PPh2]2Cl2, [Au(CH2)2PPh2]2(CCl3)Cl, and [Au(CH2)2PPh2]2(CCl3)Cl3

Abstract

Prolonged reaction of [Au(CH₂)₂PPh₂]₂(1) with CCl₄ gives [Au(CH₂)₂PPh₂]₂Cl₂(2), [Au(CH₂)₂PPh₂]₂(CCl₃)Cl (3) being formed initially, and the reaction of (1) with tetrahydrofuran-CCl₄(1 : 5) gives [Au(CH₂)₂PPh₂]₂(CCl₃)Cl₃(4), an example of a new class of dimeric gold(III)–alkyl halide complex; the X-ray crystal structures of (2), (3), and (4) are described.