Reactivity and mechanism of Chelating bis(diphenylphosphino)ethane migration in Cyclometalated Organoplatinum(II) Complexes

Document Type : Original Article

Author

Assistant Professor of Inorganic Chemistry Department of Chemistry Shahid Beheshti University Tehran, 1983969411 I. R. Iran

10.22036/cr.2022.339436.1180

Abstract

The chemistry of cyclometalated organometallic compounds is of great current interest, on the basis of applications of such compounds in stoichiometric or catalytic organic synthesis and in sensing and functional materials . As in other areas of organometallic chemistry, studies of the cyclometalation of platinum complexes have given many interesting complexes as well as new insight into the mechanisms of the reactions. 2-Phenypyridine (abbreviated as HC^N) and biphosphines (PP) are two of the most common and important classes of ligands employed in organometallic chemistry. The cyclometalated organoplatinum(II) complexes with chelating bis (diphenylphosphino) ethane [Pt (κ1-C-C^N) R (dppe)], 2, in which C^N is ppy ( deprotonated 2-phenylpyridine) were reacted with dimethylplatinum complex [Pt Me2 (dmso)2], 3, to give [Pt (C^N) R (dmso)], 1’, and [Pt Me2 (dppe)], 4. The reaction was studied by multinuclear NMR spectroscopy and the reaction pathway and mechanism of this dppe migration was proposed and confirmed by DFT calculations.

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Iranian Journal of Chemistry
Volume 5, Issue 2 - Serial Number 9
March 2023
Pages 161-165

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History

  • Receive Date: 29 April 2022
  • Revise Date: 26 May 2022
  • Accept Date: 29 May 2022

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