Pi-accepting-pincer rhodium complexes: an unusual coordination mode of PCP-type systems |
| |
| Authors: | Kossoy Elizaveta Iron Mark A Rybtchinski Boris Ben-David Yehoshoa Shimon Linda J W Konstantinovski Leonid Martin Jan M L Milstein David |
| |
| Affiliation: | Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, 76100, Israel. |
| |
| Abstract: | The novel pi-accepting, pincer-type ligand, dipyrrolylphoshinoxylene (DPyPX), is introduced. This ligand has the strongest pi-accepting phosphines used so far in the PCP family of ligands and this results in some unusual coordination chemistry. The rhodium(I) complex, [(DPyPX)Rh(CO)(PR3)] (4, R=Ph, Et, pyrrolyl) is prepared by treating the relevant [(DPyPX)Rh(PR3)] (3) complex with CO and is remarkably resistant to loss of either ligand. X-ray crystallographic analysis of complex 4 b (R=Et) reveals an unusual cisoid coordination of the PCP phosphine ligands. These observations are supported by density functional theory (DFT) calculations. |
| |
| Keywords: | coordination modes P ligands pincer ligands rhodium tridentate ligands |
| 本文献已被 PubMed 等数据库收录！ |
|
