Molecular conductors from bis(ethylenedithio)tetrathiafulvalene with tris(oxalato)gallate and tris(oxalato)iridate

Blundell, Toby J.; Morritt, Alexander L.; Rusbridge, Elizabeth K.; Quibell, Luke; Oakes, Jakob; Akutsu, Hiroki; Nakazawa, Yasuhiro; Imajo, Shusaku; Kadoya, Tomofumi; Yamada, Jun-ichi; Coles, Simon J.; Christensen, Jeppe; Martin, Lee

Abstract

We present the synthesis, crystal structures and conducting properties of six new BEDT-TTF radical-cation salts with the tris(oxalato)gallate or -iridate anion. The use of halobenzenes gives 4 : 1 β′′ metallic or superconducting salts with tris(oxalato)gallate – fluorobenzene (PhF) or chlorobenzene (PhCl) as a guest molecule gives a metal, whilst the larger bromobenzene (PhBr) or iodobenzene (PhI) gives a superconductor. A 4 : 1 pseudo-κ semiconducting salt is obtained with benzonitrile as the guest molecule for tris(oxalato)iridate, and a novel 5 : 1 metal–insulator phase with tris(oxalato)iridate is also reported.

Citation

Blundell, T. J., Morritt, A. L., Rusbridge, E. K., Quibell, L., Oakes, J., Akutsu, H., …Martin, L. (2022). Molecular conductors from bis(ethylenedithio)tetrathiafulvalene with tris(oxalato)gallate and tris(oxalato)iridate. Materials Advances, 3(11), 4724-4735. https://doi.org/10.1039/d2ma00384h

• Journal Article Type: Article
• Acceptance Date: Apr 25, 2022
• Online Publication Date: May 13, 2022
• Publication Date: Jun 7, 2022
• Deposit Date: Nov 30, 2023
• Journal: Materials Advances
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 3
• Issue: 11
• Pages: 4724-4735
• DOI: https://doi.org/10.1039/d2ma00384h
• Public URL: https://durham-repository.worktribe.com/output/1963734