Versatile synthesis of chiral 6-oxoverdazyl radical ligands – new building blocks for multifunctional molecule-based magnets
- Solea, Atena B. Department of Chemistry, HES-SO, HEIA-FR, Fribourg, Switzerland
- Wohlhauser, Tobie Department of Chemistry, HES-SO, HEIA-FR, Fribourg, Switzerland
- Abbasi, Parisa Department of Chemistry, Brock University, St Catharines, Canada
- Mongbanziama, Yvan Department of Chemistry, HES-SO, HEIA-FR, Fribourg, Switzerland
- Crochet, Aurélien Department of Chemistry, University of Fribourg, Switzerland
- Fromm, Katharina M. Department of Chemistry, University of Fribourg, Switzerland
- Novitchi, Ghenadie Laboratoire National des Champs Magnétiques Intenses, Grenoble, France
- Train, Cyrille Laboratoire National des Champs Magnétiques Intenses, Grenoble, France
- Pilkington, Melanie Department of Chemistry, Brock University, St Catharines, Canada
- Mamula, Olimpia Department of Chemistry, HES-SO, HEIA-FR, Fribourg, Switzerland
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06.03.2018
Published in:
- Dalton Transactions. - 2018, vol. 47, no. 14, p. 4785–4789
English
A versatile synthetic methodology to access the first family of chiral verdazyl N,N′- chelate ligands is described and exemplified by N,N′-dimethyl-, N,N′-di-isopropyl- and N,N′-diphenyl oxoverdazyls bearing two isomers of the pinene-pyridine functional group. Their physical properties were probed by X-band EPR spectroscopy, cyclic voltammetry and DFT calculations. Preliminary reactivity studies show they can act as N,N′-chelate ligands affording a chiral 1 : 1 complex (3b) with CuCl2, which was characterized by single-crystal X-ray diffraction. Variable temperature EPR studies on (3b) confirm the presence of antiferromagnetic interactions between the spins of the Cu(II) ion and the verdazyl radical.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Chimie
- Language
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- English
- Classification
- Chemistry
- License
- License undefined
- Identifiers
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- RERO DOC 309453
- DOI 10.1039/C8DT00840J
- Persistent URL
- https://folia.unifr.ch/unifr/documents/307022
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