Schiff Bases Functionalized With T-Butyl Groups As Adequate Ligands to Extended Assembly of Cu(II) Helicates

Sandra Fernández-Fariña; Isabel Velo-Heleno; Miguel Martínez-Calvo; Marcelino Maneiro; Francisco Rivadulla; Rosa Pedrido; Ana M. González-Noya

doi:10.20944/preprints202304.1135.v1

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preprints.org > chemistry and materials science > inorganic and nuclear chemistry > doi: 10.20944/preprints202304.1135.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Schiff Bases Functionalized With T-Butyl Groups As Adequate Ligands to Extended Assembly of Cu(II) Helicates

Sandra Fernández-Fariña

^* ,

Isabel Velo-Heleno

Miguel Martínez-Calvo

^* ,

Version 1 : Received: 27 April 2023 / Approved: 28 April 2023 / Online: 28 April 2023 (07:24:42 CEST)

A peer-reviewed article of this Preprint also exists.

Fernández-Fariña, S.; Velo-Heleno, I.; Martínez-Calvo, M.; Maneiro, M.; Pedrido, R.; González-Noya, A.M. Schiff Bases Functionalized with T-Butyl Groups as Adequate Ligands to Extended Assembly of Cu(II) Helicates. Int. J. Mol. Sci. 2023, 24, 8654. Fernández-Fariña, S.; Velo-Heleno, I.; Martínez-Calvo, M.; Maneiro, M.; Pedrido, R.; González-Noya, A.M. Schiff Bases Functionalized with T-Butyl Groups as Adequate Ligands to Extended Assembly of Cu(II) Helicates. Int. J. Mol. Sci. 2023, 24, 8654.

Abstract

The study of the inherent factors that influence the isolation of one type of metallosupramolecular architecture over another is one of the main objectives in the field of Metallosupramolecular Chemistry. In this work, we report two new neutral copper(II) helicates, [Cu2(L1)2]·4CH3CN and [Cu2(L2)2]·CH3CN, obtained by means of an electrochemical methodology and derived from two Schiff-based strands functionalized with ortho- and para-t-butyl groups on the aromatic surface. These small modifications let us to explore the relationship between the ligand design and the structure of the extended metallosupramolecular architecture. The magnetic properties of the Cu(II) helicates were explored by EPR spectroscopy and DC magnetic susceptibility measurements.

Keywords

Schiff bases; copper; helicates; magnetic properties

Subject

Chemistry and Materials Science, Inorganic and Nuclear Chemistry

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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