Di- and Tri-nuclear V^III and Cr^III Complexes of Dipyridyltriazoles: Ligand Rearrangements, Mixed Valency and Ferromagnetic Coupling.

ABSTRACT: The first dinuclear and trinuclear chromium(III) and dinuclear vanadium(III) complexes of N ⁴-R-substituted-3,5-di(2-pyridyl)-1,2,4-triazole (Rdpt) ligands have been prepared by solvothermal complexations under inert atmospheres, and characterized. The reactions of Cr^III and V^III with adpt (R = amino) resulted in deamination of the ligand and yielded the dinuclear doubly-triazolate bridged complexes [ V 2 III (dpt ^-)₂Cl₄] (1) and [ Cr 2 III (dpt ^-)₂Cl₄] (2). In the case of the Cr^III complex 2 this bridging results in a rare example of ferromagnetic coupling for a dinuclear Cr^III compound. DFT stu

SUBMITTER: Rinck J 

PROVIDER: S-EPMC7363982 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature