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 4b (R = Et) reveals an unusual cisoid coordination of the PCP phosphine ligands. These observations are supported by density functional theory (DFT) calculations.
Original language | English |
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Pages (from-to) | 2319-2326 |
Number of pages | 8 |
Journal | Chemistry - A European Journal |
Volume | 11 |
Issue number | 8 |
DOIs | |
Publication status | Published - 8 Apr 2005 |
Event | Symposium on Chemistry-A European Conference - Stimulating Concepts in Chemistry - Strasbourg, FRANCE Duration: 1 Apr 2005 → 1 Apr 2005 |