A cationic allenylideneruthenium(II) complex with two bulky hemilabile phosphine ligands
Abstract
The allenylidene complex [RuCl(C
C
CPh2)(κ2-P,O-Cy2PCH2CH2OCH3)2]PF6
(2) has been prepared from [RuCl2(κ2-P,O-Cy2PCH2CH2OCH3)2]
(1) and HC
CC(OH)Ph2 in the presence of AgPF6. Protonation
of 2 with HBF4 in
CCH
CPh2)(κ2-P,O-Cy2PCH2CH2OCH3)(κ-P-Cy2PCH2CH2OCH3)]2+,
which is catalytically less active in
CCH3) as a molecular unit. The molecular structure of 2 has been determined by