Rhodium complexes containing the hybrid P,O ligand PPh2NHC(O)Me or its anion, [PPh2NC(O)Me]−
作者： Pierre Braunstein , Brian T. Heaton , Chacko Jacob , Lucia Manzi , Xavier Morise
DOI: 10.1039/B208735A
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摘要: The coordination behaviour of the heterofunctional phosphine ligand PPh2NHC(O)Me towards Rh(I) is reported and examples neutral cationic complexes containing mono- or bi-dentate modes are found. X-ray structure [Rh{PPh2NHC(O)Me}(CO)Cl]·CH2Cl2 (1·CH2Cl2) shows that P,O-chelate almost planar coplanar with square-plane. An unusual example found in dimer [Rh{μ-PPh2NC(O)Me}(CO)]2 (2), which contains bidentate, anionic bridges two rhodium atoms via oxygen; it probable can form similar complexes, such as 11 12. Displacement P,O by CO RNC ligands occurs 1 but not 2.
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