Dey A, Confer AM, Vilbert AC, Moënne-Loccoz P, Lancaster KM, Goldberg DP. A Nonheme Sulfur-Ligated {FeNO}
6 Complex and Comparison with Redox-Interconvertible {FeNO}
7 and {FeNO}
8 Analogues.
Angew Chem Int Ed Engl 2018;
57:13465-13469. [PMID:
30125450 DOI:
10.1002/anie.201806146]
[Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Indexed: 01/23/2023]
Abstract
A nonheme {FeNO}6 complex, [Fe(NO)(N3PyS)]2+ , was synthesized by reversible, one-electron oxidation of an {FeNO}7 analogue. This complex completes the first known series of sulfur-ligated {FeNO}6-8 complexes. All three {FeNO}6-8 complexes are readily interconverted by one-electron oxidation/reduction. A comparison of spectroscopic data (UV/Vis, NMR, IR, Mössbauer, X-ray absorption) provides a complete picture of the electronic and structural changes that occur upon {FeNO}6 -{FeNO}8 interconversion. Dissociation of NO from the new {FeNO}6 complex is shown to be controlled by solvent, temperature, and photolysis, which is rare for a sulfur-ligated {FeNO}6 species.
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