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|Title:||Dicarbonylcyclopentadienyliridium, (η-C5H5)Ir(CO)2, as a ligand|
|Source:||Jiang, F.,Biradha, K.,Leong, W.K.,Pomeroy, R.K.,Zaworotko, M.J. (1999). Dicarbonylcyclopentadienyliridium, (η-C5H5)Ir(CO)2, as a ligand. Canadian Journal of Chemistry 77 (8) : 1327-1335. ScholarBank@NUS Repository.|
|Abstract:||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.|
|Source Title:||Canadian Journal of Chemistry|
|Appears in Collections:||Staff Publications|
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