[TCNQF4-]2: A Redox-Active Double Radical Salt

Ian A. Gass, Jinzhen Lu, Ruchika Ojha, Mousa Asadi, David W. Lupton, Blaise L. Geoghegan, Boujemaa Moubaraki, Lisandra L. Martin, Alan M. Bond, Keith S. Murray

Research output: Contribution to journalArticleResearchpeer-review

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.

Original languageEnglish
Pages (from-to)769-777
Number of pages9
JournalAustralian Journal of Chemistry
Volume72
Issue number10
DOIs
Publication statusPublished - 19 Jul 2019

Cite this