Synthesis, Structural, and Electrocatalytic Reduction Studies of [Pd(P<sub>2</sub>N<sub>2</sub>)<sub>2</sub>]<sup>2+</sup> Complexes
- Candace S. Seu (1920583)
- David Ung (1920586)
- Michael D. Doud (1920580)
- Curtis E. Moore (1338609)
- Arnold L. Rheingold (1342710)
- Clifford P. Kubiak (1368309)
Publication date
August 2013
DOIAbstract
A series of four new bis-P<sub>2</sub>N<sub>2</sub> (P<sub>2</sub>N<sub>2</sub> = 1,5-diaza-3,7-diphosphacyclooctane) Pd(II) complexes were synthesized and characterized by spectroscopy, electrochemistry, and X-ray crystallography. The compounds crystallize in square planar or tetrahedrally distorted geometries and exhibit a single quasi-reversible 2e<sup>–</sup> Pd(II/0) redox couple in voltammetric studies. [Pd(P<sup>Ph</sup><sub>2</sub>N<sup>Bn</sup><sub>2</sub>)<sub>2</sub>]<sup>2+</sup> and [Pd(P<sup>Me</sup><sub>2</sub>N<sup>Ph</sup><sub>2</sub>)<sub>2</sub>]<sup>2+</sup> were tested for electrochemical CO<sub>2</sub> reduction in the presence of excess protons and found to preferentially produce H<sub>2</sub>
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