Synthesis and characterization of palladium complexes containing tridentate ligands with PXP (X = C, N, O, S, As) donor sets and their evaluation as electrochemical CO2 reduction catalysts

B. D. Steffey, A. Miedaner, M. L. Maciejewski-Farmer, P. R. Bernatis, A. M. Herring, V. S. Allured, V. Carperos, Daniel L DuBois

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Abstract

Square-planar palladium complexes containing tridentate ligands with PXP (X = C, N, O, S, and As) donor sets have been prepared. For (Pd(POP-R)(CH3CN)2)(BF4)2 complexes (where POP-R is bis((diethylphosphine)ethyl)ether), bis((diphenylphosphino)ethyl)ether, or Bis((dicyclohexylphosphino)ethyl)ether), the POP-R ligands function as bidentate ligands. For all other complexes, the PXP ligands function as tridentate ligands. The dependence of the catalytic current on CO2 and acid concentrations is consistent with the formation of a hydroxycarbonyl intermediate which decomposes in the presence of acid to form hydrogen as the catalytic product.

Original languageEnglish
Pages (from-to)4844-4855
Number of pages12
JournalOrganometallics
Volume13
Issue number12
Publication statusPublished - Dec 1994

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ASJC Scopus subject areas

  • Inorganic Chemistry
  • Organic Chemistry

Cite this

Steffey, B. D., Miedaner, A., Maciejewski-Farmer, M. L., Bernatis, P. R., Herring, A. M., Allured, V. S., Carperos, V., & DuBois, D. L. (1994). Synthesis and characterization of palladium complexes containing tridentate ligands with PXP (X = C, N, O, S, As) donor sets and their evaluation as electrochemical CO2 reduction catalysts. Organometallics, 13(12), 4844-4855.