N–N Coupling of Nitrosyl Ligands in a Dinitrosyl Iron Complex Mediated by Exogenous Acids
Year: 2026
Type: article
Abstract: We disclose the synthesis, characterization, and reactivity profiles of a dinitrosyl iron complex (DNIC) toward exogenous Brønsted and Lewis acids. Treatment of the {Fe(NO) 2 } 10 complex butyl NNFe(NO) 2 ( 1 ) ( butyl NN = 2-(1-butyl-5( tert -butyl)-1 H -pyrazol-3-yl)-6-methylpyridine) with a variety of Brønsted and Lewis acids generates an oxidized {Fe(NO) 2 } 9 species [ butyl NNFe(NO) 2 ][PF 6 ] ( 2-PF 6 ) and, in the presence of a radical reagent, N 2 O. The pathway for N 2 O formation is governed by acid additives, and mechanistic studies indicate the acid promotes electron transfer from the iron center in 1 and facilitates NO lability, providing a pathway for N 2 O formation.
Source: Inorganic Chemistry
Authors: Ethan Zars, Daniel M. Beagan, Sarah R. Reed, Matthias Zeller, Nicolai Lehnert, Nathaniel K. Szymczak
Institutions: University of Michigan, Purdue University West Lafayette
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7155243518