Direct Reduction of NO to N2O by a Mononuclear Nonheme Thiolate Ligated Iron(II) Complex via Formation of a Metastable {FeNO}7Complex

Aniruddha Dey, Therese Albert, Richard Y. Kong, Samantha N. Macmillan, Pierre Moënne-Loccoz, Kyle M. Lancaster, David P. Goldberg

Research output: Contribution to journalArticlepeer-review

Abstract

Addition of NO to a nonheme dithiolate-ligated iron(II) complex, FeII(Me3TACN)(S2SiMe2) (1), results in the generation of N2O. Low-temperature spectroscopic studies reveal a metastable six-coordinate {FeNO}7 intermediate (S = 3/2) that was trapped at -135 °C and was characterized by low-temperature UV-vis, resonance Raman, EPR, Mössbauer, XAS, and DFT studies. Thermal decay of the {FeNO}7 species leads to the evolution of N2O, providing a rare example of a mononuclear thiolate-ligated {FeNO}7 that mediates NO reduction to N2O without the requirement of any exogenous electron or proton sources.

Original languageEnglish (US)
Pages (from-to)14909-14917
Number of pages9
JournalInorganic Chemistry
Volume61
Issue number38
DOIs
StatePublished - Sep 26 2022

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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