TY - JOUR
T1 - Dicarbonylcyclopentadienyliridium, (η-C5H5)Ir(CO)2, as a ligand
AU - Jiang, Faming
AU - Biradha, Kumar
AU - Leong, Weng Kee
AU - Pomeroy, Roland K.
AU - Zaworotko, Michael J.
PY - 1999
Y1 - 1999
N2 - The following complexes, in which CpIr(CO)2 acts as a 2e donor ligand, have been prepared: Cp(OC)2IrW(CO)5 (1), Cp(OC)2IrRu(CO)3(SiCl3)2, Cp(OC)2IrOs(CO)3(GeCl3)(Cl) (2), Cp(OC)2IrOs(CO)3(X)2 (X = Cl, Br (3), I). The characterization of the complexes included the crystal structures of 1, 2, and 3, which reveal that all contain an unbridged metal-metal bond. The carbonyl ligands of 1 in solution undergo exchange on the NMR time scale above -40°C. With the exception of 2, all the complexes dissociate in solution at room temperature, some rapidly so. Only in the case of 3 is an equilibrium with the dissociation products established. The results indicate that CpIr(CO)2 is a weak ligand.
AB - The following complexes, in which CpIr(CO)2 acts as a 2e donor ligand, have been prepared: Cp(OC)2IrW(CO)5 (1), Cp(OC)2IrRu(CO)3(SiCl3)2, Cp(OC)2IrOs(CO)3(GeCl3)(Cl) (2), Cp(OC)2IrOs(CO)3(X)2 (X = Cl, Br (3), I). The characterization of the complexes included the crystal structures of 1, 2, and 3, which reveal that all contain an unbridged metal-metal bond. The carbonyl ligands of 1 in solution undergo exchange on the NMR time scale above -40°C. With the exception of 2, all the complexes dissociate in solution at room temperature, some rapidly so. Only in the case of 3 is an equilibrium with the dissociation products established. The results indicate that CpIr(CO)2 is a weak ligand.
KW - Binuclear
KW - Iridium
KW - Osmium
KW - Tungsten
UR - http://www.scopus.com/inward/record.url?scp=0033306647&partnerID=8YFLogxK
U2 - 10.1139/v99-131
DO - 10.1139/v99-131
M3 - Article
AN - SCOPUS:0033306647
SN - 0008-4042
VL - 77
SP - 1327
EP - 1335
JO - Canadian Journal of Chemistry
JF - Canadian Journal of Chemistry
IS - 8
ER -