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Taniaphos and Walphos ligands: Oxidative electrochemistry and complexation. Synthesis, characterization, oxidative electrochemistry and X-ray structures of [(Taniaphos/Walphos)MCl2] (M = Pd or Pt) |
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| Authors: | Annalese F. Maddox Arnold L. Rheingold W. Scott Kassel |
| Affiliation: | a Department of Chemistry, Hugel Science Center, Lafayette College, Easton, PA 18042, United States b Department of Chemistry and Biochemistry, University of California - San Diego, La Jolla, CA 92093, United States c Department of Chemistry, Villanova University, Villanova, PA 19085, United States |
| Abstract: | The oxidative electrochemistry of chiral, bidentate ferrocenylphosphines, five Taniaphos and seven Walphos ligands, was studied in methylene chloride. In general, two waves of varying reversibility were observed. Complexes of the general type [(phosphine)MCl2] (phosphine = Taniaphos or Walphos; M = Pd or Pt) were prepared and characterized by NMR. Upon coordination, the oxidative electrochemistry of the ligands was greatly simplified. The X-ray structures of a Taniaphos platinum complex as well as a palladium and a platinum complex with a Walphos ligand were determined. |
| Keywords: | Taniaphos ligands Walphos ligands Cyclic voltammetry Electrochemistry Crystal structures |
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