Coordination chemistry of Ga(C5Me4Ph): novel homoleptic d10 cluster complexes of palladium.
The synthesis and characterization of the novel sterically encumbered Ga(I) ligand GaCp(Ph) (1b) (Cp(Ph) = C5Me4Ph) is presented. GaCp(Ph) reacts with the Pd(0) source Pd2(dvds)3 (dvds = tetramethyldivinyldisiloxane) to give the trinuclear cluster [Pd3(GaCp(Ph))(mu2-GaCp(Ph))(mu3-GaCp(Ph))2(dvds)] (2a). 2a is the first example of a Ga(I)-containing cluster with a potentially labile olefinic ligand. It was found that 2a is an intermediate in the formation of the dinuclear cluster [Pd2(GaCp(Ph))2(mu2-GaCp(Ph))3] (2b), which is formed on reaction of 2a with GaCp(Ph). Both clusters were found to be labile toward GaCp, AlCp, or phosphines, giving substitution products in all cases.
Anorganische Chemie II, Organometallics & Materials, Bochum, Germany.
Beatrice
B
Buchin
Christian
C
Gemel
Thomas
T
Cadenbach
Roland A
RA
Fischer