Mechanism of Chemical and Electrochemical N₂ Splitting by a Rhenium Pincer Complex.

ABSTRACT: A comprehensive mechanistic study of N₂ activation and splitting into terminal nitride ligands upon reduction of the rhenium dichloride complex [ReCl₂(PNP)] is presented (PNP^- = N(CH₂CH₂P tBu₂)₂^-). Low-temperature studies using chemical reductants enabled full characterization of the N₂-bridged intermediate [{(PNP)ClRe}₂(N₂)] and kinetic analysis of the N-N bond scission process. Controlled potential electrolysis at room temperature also resulted in formation of the nitride product [Re(N)Cl(PNP)]. This first example of molecular electrochemical N₂ splitting into nitride complexes enabled the use of cyclic voltammetry (CV) methods to establish the mechanism of

SUBMITTER: Lindley BM 

PROVIDER: S-EPMC6026835 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature