| 15643661 |
Kossoy E, Iron MA, Rybtchinski B, Ben-David Y, Shimon LJ, Konstantinovski L, Martin JM, Milstein D: Pi-accepting-pincer rhodium complexes: an unusual coordination mode of PCP-type systems. Chemistry. 2005 Apr 8;11(8):2319-26.
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. |
1(0,0,0,1) |