Saturday, April 07, 2012

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

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7/abril/2012
Paulina Levario

A series of rhodaboratranes [{o(Ph2P)C6H4}3BRhHn(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.

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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

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