Issue 7, 2023

Observation of slow magnetic relaxation phenomena in spatially isolated π-radical ions

Abstract

The use of molecular spins as quantum bits is fascinating because it offers a wide range of strategies through chemical modifications. In this regard, it is very interesting to search for organic radical ions that have small spin–orbit coupling values. On the other hand, the feature of the magnetic relaxation of π-organic radical ions is rarely exploited due to the difficulty of spin dilution, and π-stacking interaction. In this study, we focus on N,N′,N′′-tris(2,6-dimethylphenyl)benzenetriimide (BTI-xy), where three xylene moieties connected to the imide groups cover the π-plane of the BTI core. As a result, BTI-xy radical anions without π-stacking interaction were obtained. This led to the slow magnetization relaxation, which is reported for the first time in organic radicals. Furthermore, the relaxation times in a solution state revealed the importance of spin interaction.

Graphical abstract: Observation of slow magnetic relaxation phenomena in spatially isolated π-radical ions

Supplementary files

Article information

Article type
Paper
Submitted
26 Dec 2022
Accepted
14 Jan 2023
First published
17 Jan 2023
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2023,25, 5459-5467

Observation of slow magnetic relaxation phenomena in spatially isolated π-radical ions

S. Koyama, K. Sato, M. Yamashita, R. Sakamoto and H. Iguchi, Phys. Chem. Chem. Phys., 2023, 25, 5459 DOI: 10.1039/D2CP06026D

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