pi-accepting-pincer rhodium complexes: An unusual coordination mode of PCP-type systems

Elizaveta Kossoy, Mark A. Iron, Boris Rybtchinski, Yehoshoa Ben-David, Linda J. W. Shimon, Leonid Konstantinovski, Jan M. L. Martin*, David Milstein*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

47 Citations (Scopus)

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 languageEnglish
Pages (from-to)2319-2326
Number of pages8
JournalChemistry - A European Journal
Volume11
Issue number8
DOIs
Publication statusPublished - 8 Apr 2005
EventSymposium on Chemistry-A European Conference - Stimulating Concepts in Chemistry - Strasbourg, FRANCE
Duration: 1 Apr 20051 Apr 2005

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