Deoxovanadium(IV) complexes of the dibenzotetramethyltetra-aza[14]-annulene ligand: formation of products containing thioxo-, µ-nitrido-, and oxidatively coupled ligands

Abstract

Deoxygenation of the oxovanadium(IV) complex, V(C₂₂H₂₂N₄)O, with anhydrous HCl yields V(C₂₂H₂₂-N₄)Cl_2˙HCl from which a thioxo-complex, V(C₂₂H₂₂N₄)S, is obtained by reaction with H₂S, and a µ-nitrido-complex [V(C₂₂H₂₂N₄)–N–V(C₂₂H₂₂N₄)]⁺ is obtained by reaction with ammonia; a ligand-coupled dimer of V(C₂₂H₂₂N₄)O is obtained by reaction with mild oxidants.