The Chemistry of Vanadium bis‐Phenolate NHC Complexes in Three Oxidation States
نویسندگان
چکیده
21 vanadium bis-phenolate benzimidazolyidene complexes spanning three oxidation states have been investigated. Special emphasis is thereby laid on their salt metathesis reactivity and the accessibility of +IV state by reductive or oxidative routes, starting from vanadium(V) vanadium(III) respectively. While route highly depended reducing agent material used, gives clean access to vanadium(IV) dihalides complexes. The low-valent are excellent precursors for reactions which lead isolation a rare NHC alkyl complex. All new characterized (paramagnetic) 1H NMR 51V NMR, UV-VIS, IR EPR spectroscopy as well elemental analysis. Cyclic voltammetry has performed in selected cases study influence imido phenolate supporting ligands towards redox-potential vanadium(V/IV) redox couple compared parent oxo-chlorido complex A.
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ژورنال
عنوان ژورنال: European Journal of Inorganic Chemistry
سال: 2023
ISSN: ['1434-1948', '1099-0682']
DOI: https://doi.org/10.1002/ejic.202300180