Issue 82, 2019

Electronic and spin delocalization in a switchable trinuclear triphenylene trisemiquinone bridged Ni3 complex

Abstract

A trinuclear triphenylene trisemiquinone complex containing paramagnetic NiII is obtained under ambient conditions from the reaction of deprotonated tricatecholate hexahydroxytriphenylene (H6HHTP) with NiII capped with a trispyrazolyl borate tridentate ligand. The magnetic and EPR data are consistent with delocalization of the electronic spin over the three NiII species. The two-electron reduced complex shows an EPR spectrum corresponding to a S = 1/2 species due to a large antiferromagnetic coupling between the radical and only one of the NiII ions highlighting the localization of the electronic spin. No EPR signal is observed for the one- and three-electron reduced species consistent with the closed shell of the bridging ligand.

Graphical abstract: Electronic and spin delocalization in a switchable trinuclear triphenylene trisemiquinone bridged Ni3 complex

Supplementary files

Article information

Article type
Communication
Submitted
08 Jul 2019
Accepted
16 Sep 2019
First published
17 Sep 2019

Chem. Commun., 2019,55, 12336-12339

Electronic and spin delocalization in a switchable trinuclear triphenylene trisemiquinone bridged Ni3 complex

Y. Wang, F. Lambert, E. Rivière, R. Guillot, C. Herrero, A. Tissot, Z. Halime and T. Mallah, Chem. Commun., 2019, 55, 12336 DOI: 10.1039/C9CC05183J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements