Delocalization and Valence Tautomerism in Vanadium Tris(iminosemiquinone) Complexes

Angewandte Chemie
Jesper Bendix, Kensha Marie Clark

Abstract

To survey the noninnocence of bis(arylimino) acenaphthene (BIAN) ligands (L) in complexes with early metals, the homoleptic vanadium complex, [V(L)3 ] (1), and its monocation, [V(L)3 ]PF6 (2), were synthesized. These complexes were found to have a very rich electronic behavior, whereby 1 displays strong electronic delocalization and 2 can be observed in unprecedented valence tautomeric forms. The oxidation states of the metal and ligand components in these complexes were assigned by using spectroscopic, crystallographic, and magnetic analyses. Complex 1 was identified as [V(IV) (L(red) )(L(.) )2 ] (L(red) =N,N'-bis(3,5-dimethylphenylamido)acenaphthylene; L(.) =N,N'-bis(3,5-dimethylphenylimino)acenaphthenesemiquinonate). Complex 2 was determined to be [V(V) (L(red) )(L(.) )2 ](+) at T<150 K and [V(IV) (L(.) )3 ](+) at T>150 K. Cyclic voltammetry experiments reveal six quasi-reversible processes, thus indicating the potential of this metal-ligand combination in catalysis or materials applications.

References

Dec 18, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Nicholas J HillAlan H Cowley
Feb 16, 2010·Inorganic Chemistry·Igor L FedushkinHerbert Schumann
Sep 20, 2012·Angewandte Chemie·Igor L FedushkinFranc Meyer

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Citations

Oct 13, 2016·Journal of the American Chemical Society·John J KiernickiSuzanne C Bart
Jul 26, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·N LeconteF Thomas
Jan 11, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Travis Marshall-RothSeth N Brown
Aug 21, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Elham SafaeiTim Storr
May 2, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Dmitriy S YambulatovIgor L Eremenko
May 23, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Susana QuintalMaria José Calhorda
Jul 11, 2020·Chemistry : a European Journal·Stephan LudwigWolfram Willy Seidel
Feb 16, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·A A GudaA V Soldatov
Jun 2, 2021·Chemical Communications : Chem Comm·Nico M BonannoMartin T Lemaire
Jun 8, 2021·Chemical Science·Morten Gotthold VinumKasper S Pedersen
Sep 2, 2021·Journal of the American Chemical Society·Jing ZhaoYing-Feng Han
Nov 10, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Vincent L NadurataColette Boskovic

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