Taniaphos and Walphos ligands: Oxidative electrochemistry and complexation. Synthesis, characterization, oxidative electrochemistry and X-ray structures of [(Taniaphos/Walphos)MCl 2] (M = Pd or Pt)

The oxidative electrochemistry of a series of chiral, bidentate ferrocenylphosphines and palladium and platinum complexes of each ligand was investigated in methylene chloride. The X-ray structures of three complexes were determined. The oxidative electrochemistry of chiral, bidentate ferrocenylphos...

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Bibliographic Details
Published in:Inorganica Chimica Acta 2008-07, Vol.361 (11), p.3283-3293
Main Authors: Maddox, Annalese F., Rheingold, Arnold L., Golen, James A., Scott Kassel, W., Nataro, Chip
Format: Article
Language:English
Subjects:
Crystal structures
Cyclic voltammetry
Electrochemistry
Taniaphos ligands
Walphos ligands
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Summary:The oxidative electrochemistry of a series of chiral, bidentate ferrocenylphosphines and palladium and platinum complexes of each ligand was investigated in methylene chloride. The X-ray structures of three complexes were determined. 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)MCl 2] (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.
ISSN:0020-1693
1873-3255
DOI:10.1016/j.ica.2007.09.031