Dissemin is shutting down on January 1st, 2025

Published in

Elsevier, Inorganic Chemistry Communications, (66), p. 94-97, 2016

DOI: 10.1016/j.inoche.2016.02.014

Links

Tools

Export citation

Search in Google Scholar

New bis-o-iminosemiquinonate aluminium(III) complexes

This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Orange circle
Postprint: archiving restricted
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

The first aluminium(III) complexes based on sterically hindered 4,6-di-tert-butyl-N-(2,6-di-iso-propyl-phenyl)-o-iminobenzoquinone (imQ) of general formula imSQ2AlR (where imSQ — is a radical anion of imQ, R = I (1), NCS (2) and N3 (3)) were synthesized. Compounds 1–3 demonstrate biradical X-band EPR spectra in frozen toluene matrix. The crystalline samples of 1–3 were characterized using magnetic susceptibility measurements. The antiferromagnetic coupling between spins of o-iminosemiquinonate radicals in 1–3 is predominant and, as the result, the singlet ground state for pentacoordinated biradical compounds is observed. The molecular structures of all the complexes obtained have been established by the single crystal X-ray analysis.