Reaction of [M(CO)(4)](-) (M = Ir, Rh) with cyclopropenyl tetrafluoroborate - Ring opening and coupling of cyclopropenyl ligands to form dinuclear metal complexes

摘要

Reaction of the iridium tetracarbonylate [PPN][Ir(CO)(4)] (1a) with triphenylcyclopropenyl tetrafluoroborate [C3Ph3][BF4] afforded two dinuclear species Ir-2(CO)(4)(mu, eta(1):eta(2)-C3Ph3)(mu, eta(2): eta(3)-C3Ph3) (2) and Ir-2(CO) 4(mu,eta(4): eta(4)-C6Ph6) (3a) resulting from the ring opening and in the latter case, coupling of the resulting acyclic, propenyl ligands. The analogous reaction with [PPN][Rh(CO)(4)] (1b) afforded only the rhodium analogue for 3a. (C) 2008 Elsevier B.V. All rights reserved.