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Similar reactions with H<jats:sub>2<\/jats:sub>L<jats:sup>2<\/jats:sup> (<jats:bold>II<\/jats:bold>) and H<jats:sub>2<\/jats:sub>L<jats:sup>4<\/jats:sup> (<jats:bold>IV<\/jats:bold>) in acetonitrile resulted in the formation of the corresponding dinuclear complexes [{V<jats:sup>V<\/jats:sup>O(L<jats:sup>2<\/jats:sup>)}<jats:sub>2<\/jats:sub>\u00b5\u2010O] (<jats:bold>5<\/jats:bold>) and [{V<jats:sup>V<\/jats:sup>O(L<jats:sup>4<\/jats:sup>)}<jats:sub>2<\/jats:sub>\u00b5\u2010O] (<jats:bold>6<\/jats:bold>). Single\u2010crystal X\u2010ray diffraction analysis of <jats:bold>1<\/jats:bold>, <jats:bold>2<\/jats:bold> and <jats:bold>4<\/jats:bold> confirmed the formulation of the mononuclear compounds as V<jats:sup>V<\/jats:sup>O complexes, with the ligands behaving in a tetradentate manner, overall yielding a distorted octahedral geometry. The molecular structures of <jats:bold>1<\/jats:bold>, <jats:bold>2<\/jats:bold> and <jats:bold>5<\/jats:bold> were calculated by DFT, as well as the corresponding <jats:sup>51<\/jats:sup>V NMR chemical shifts (in methanol and chloroform) and IR frequencies. The V compounds depict time\u2010dependent solution behaviour, which was studied and rationalised through the combined interpretation of data from spectroscopic techniques (mainly UV\/Vis and <jats:sup>51<\/jats:sup>V NMR), mass spectrometry and DFT calculations. They exhibit distinct speciation in different solvents, and it was confirmed that in acetonitrile, they form \u00b5\u2010O oxido dinuclear species. The alkoxido ligands of complexes [V<jats:sup>V<\/jats:sup>O(OR)(L)] in CDCl<jats:sub>3<\/jats:sub> are exchanged upon addition of alcohols; namely the <jats:sup>51<\/jats:sup>V NMR chemical\u2010shift values of [V<jats:sup>V<\/jats:sup>O(OR)(L<jats:sup>2<\/jats:sup>)] depict an increasing shielding effect of the OR moiety in the order: OMe &lt; OEt &lt; O<jats:italic>i<\/jats:italic>Pr &lt; O<jats:italic>t<\/jats:italic>Bu. Compounds <jats:bold>1<\/jats:bold>\u2013<jats:bold>4<\/jats:bold> were employed as catalyst precursors in the oxidation of dopamine to aminochrome in MeOH using dioxygen (air) as the primary oxidant.<\/jats:p>","DOI":"10.1002\/ejic.201700342","type":"journal-article","created":{"date-parts":[[2017,5,2]],"date-time":"2017-05-02T13:31:28Z","timestamp":1493731888000},"page":"3087-3099","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Solution Behaviour and Catalytic Potential towards Oxidation of Dopamine by Oxidovanadium(V) Complexes of Tripodal Tetradentate Ligands"],"prefix":"10.1002","volume":"2017","author":[{"given":"Mannar R.","family":"Maurya","sequence":"first","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Roorkee  247667 Roorkee India"}]},{"given":"Bhawna","family":"Uprety","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Roorkee  247667 Roorkee India"}]},{"given":"Fernando","family":"Avecilla","sequence":"additional","affiliation":[{"name":"Departamento de Qu\u00edmica Fundamental Universidade da Coru\u00f1a  Campus de A Zapateira 15071 A Coru\u00f1a Spain"}]},{"given":"Pedro","family":"Ad\u00e3o","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica Estrutural Instituto Superior T\u00e9cnico Universidade Lisboa  1049\u2010001 Lisboa Portugal"}]},{"given":"Maxim L.","family":"Kuznetsov","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica Estrutural Instituto Superior T\u00e9cnico Universidade Lisboa  1049\u2010001 Lisboa Portugal"}]},{"given":"J.","family":"Costa Pessoa","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica Estrutural Instituto Superior T\u00e9cnico Universidade Lisboa  1049\u2010001 Lisboa 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