Ferrate(ii) complexes with redox-active formazanate ligands

Francesca Milocco, Serhiy Demeshko, Franc Meyer, Edwin Otten

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)

Abstract

The synthesis of mono(formazanate) iron complexes is described. In the presence of tetrabutylammonium halides, salt metathesis reactions afford the ferrate(ii) complexes [Bu4N][LFeX2] (L = PhNNC(p-tol)NNPh; X = Cl, Br) in good yield, and the products are characterized in detail. The high-spin ferrate(ii) complexes show cyclic voltammograms that are consistent with reversible, ligand-based one-electron reduction. The halides in these ferrate(ii) compounds are labile, and are displaced by 4-methoxyphenyl isocyanide (4 equiv.) as evidenced by formation of the low-spin, cationic octahedral complex [LFe(CNC6H4(p-OMe))4][Br]. Thus, a straightforward route to mono(formazanate) iron(ii) complexes is established.

Original languageEnglish
Pages (from-to)8817-8823
Number of pages7
JournalDalton Transactions
Volume47
Issue number26
DOIs
Publication statusPublished - 3-Jul-2018

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