Article Dans Une Revue Chemistry - A European Journal Année : 2025

Solvatochromism and Redox Multi‐Switch in a Trinuclear Cobalt(II) Complex

Résumé

A trinuclear cobalt(II) complex incorporating the redox‐active hexahydroxytriphenylene (H6HHTP) ligand was prepared and isolated in two different redox states: [CoII3(sq‐sq‐sq)]3+ ( 1 ) and [CoII3(cat‐sq‐sq)]2+ ( 2 ) (sq = semiquinone; cat = catecholate), enabled by its remarkable solvatochromic behavior. The ligand field tuning of the Co(II) centers through the ancillary ligand Me 3 TPA (tris(6‐methyl‐2‐pyridylmethyl)amine) allowed accessing six reversible one‐electron processes instead of only three with the parent TPA ligand, therefore increasing the range of redox‐coupled magnetic and optical switching in this system. Upon reduction, the three redox processes are ligand‐centered and involve the three sq•−/cat2− couples of hexahydroxytriphenylene (HHTP), while we hypothesize that some of the oxidation processes may involve the Co(II) metallic species.

Fichier principal
Vignette du fichier
Chemistry A European J - 2025 - Delaporte - Solvatochromism and Redox Multi‐Switch in a Trinuclear Cobalt II Complex(1).pdf (1.12 Mo) Télécharger le fichier
Origine Publication financée par une institution
Licence

Dates et versions

hal-05224360 , version 1 (13-11-2025)

Licence

Identifiants

Citer

Solène Delaporte, Nathalie Bridonneau, François Lambert, Régis Guillot, Nicolas Suaud, et al.. Solvatochromism and Redox Multi‐Switch in a Trinuclear Cobalt(II) Complex. Chemistry - A European Journal, 2025, 31 (45), pp.e202501455. ⟨10.1002/chem.202501455⟩. ⟨hal-05224360⟩
155 Consultations
123 Téléchargements

Altmetric

Partager

  • More