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Issue 14, 2018
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Versatile synthesis of chiral 6-oxoverdazyl radical ligands – new building blocks for multifunctional molecule-based magnets

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Abstract

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.

Graphical abstract: Versatile synthesis of chiral 6-oxoverdazyl radical ligands – new building blocks for multifunctional molecule-based magnets

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Publication details

The article was received on 05 Mar 2018, accepted on 06 Mar 2018 and first published on 06 Mar 2018


Article type: Communication
DOI: 10.1039/C8DT00840J
Citation: Dalton Trans., 2018,47, 4785-4789
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    Versatile synthesis of chiral 6-oxoverdazyl radical ligands – new building blocks for multifunctional molecule-based magnets

    A. B. Solea, T. Wohlhauser, P. Abbasi, Y. Mongbanziama, A. Crochet, K. M. Fromm, G. Novitchi, C. Train, M. Pilkington and O. Mamula, Dalton Trans., 2018, 47, 4785
    DOI: 10.1039/C8DT00840J

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