Published in
CSIRO Publishing, Australian Journal of Chemistry, 10(72), p. 769, 2019
DOI: 10.1071/ch19175
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[FeII(L•)2][TCNQF4•−]2: A Redox-Active Double Radical Salt
,
Jinzhen Lu,
Ruchika Ojha,
Mousa Asadi,
David W. Lupton ,
Blaise L. Geoghegan,
Boujemaa Moubaraki,
Lisandra L. Martin ,
Alan M. Bond ,
Keith S. Murray
Full text: Unavailable
Abstract
The reaction of [FeII(L•)2][BF4]2 with LiTCNQF4 results in the formation of [FeII(L•)2][TCNQF4•−]2·2CH3CN (1) (L• is the neutral aminoxyl radical ligand 4,4-dimethyl-2,2-di(2-pyridyl)oxazolidine-N-oxide; TCNQF4 is 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane). Single-crystal X-ray diffraction; Raman, Fourier-transform infrared (FTIR) and ultraviolet–visible spectroscopies; and electrochemical studies are all consistent with the presence of a low-spin FeII ion, the neutral radical form (L•) of the ligand, and the radical anion TCNQF4•−. 1 is largely diamagnetic and the electrochemistry shows five well-resolved, diffusion-controlled, reversible one-electron processes.
