Synthesis of Rhodaboratranes Bearing Phosphine-Tethered Boranes: Evaluation of the Metal–Boron Interaction

7/abril/2012

Paulina Levario

A series of rhodaboratranes [{o(Ph₂P)C₆H₄}₃BRhH_n(CO)]^m (1, n = 1, m = 0; 4, n = 0, m = +1; 5,n = 0, m = −1) with different electron charges ranging from −1 to +1 have been synthesized. X-ray diffraction, IR, NMR, and DFT calculation studies have demonstrated that the σ-acceptor borane ligand produces a unique electron distribution in these systems and significantly weakens the Rh–L bond (L = CO, PR₃) trans to the boron. The reversible CO/PR₃(R = Me or Ph) substitution reactions of 1 and 5 are attributed to these properties.

For more information:

Synthesis of Rhodaboratranes Bearing Phosphine-Tethered Boranes: Evaluation of the Metal–Boron Interaction

Hajime Kameo, Yasuhiro Hashimoto, and Hiroshi Nakazawa

Organometallics Article ASAP

Department of Chemistry, Graduate School of Science,Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan

DOI: 10.1021/om3000423

Publication Date (Web): March 22, 2012

Copyright © 2012 American Chemical Society

http://pubs.acs.org/doi/abs/10.1021/om3000423