Issue 3, 2020

Photochemistry of tris(2,3,5,6-tetrathiaaryl)methyl radicals in various solutions

Abstract

During the last decades, persistent tris(2,3,5,6-tetrathiaaryl)methyl radicals (TAMs) have attracted much attention due to their applications in oximetry, EPR tomography, and as spin labels in pulsed dipolar EPR spectroscopy. Recently, researchers proposed to use TAM radicals as spin labels and/or a partner for photoinduced spin labels. Thus, the questions of their photochemical stability and mechanism of degradation under UV irradiation have become relevant and important. In this study, steady-state photolysis and flash photolysis of TAM radicals were investigated. A detailed mechanism of TAM phototransformations was proposed and confirmed by NMR, gel permeation chromatography, and mass-spectrometric analyses of the products.

Graphical abstract: Photochemistry of tris(2,3,5,6-tetrathiaaryl)methyl radicals in various solutions

Supplementary files

Article information

Article type
Paper
Submitted
17 ное 2019
Accepted
11 дек 2019
First published
11 дек 2019

Phys. Chem. Chem. Phys., 2020,22, 1019-1026

Photochemistry of tris(2,3,5,6-tetrathiaaryl)methyl radicals in various solutions

A. A. Kuzhelev, V. M. Tormyshev, V. F. Plyusnin, O. Yu. Rogozhnikova, M. V. Edeleva, S. L. Veber and E. G. Bagryanskaya, Phys. Chem. Chem. Phys., 2020, 22, 1019 DOI: 10.1039/C9CP06213K

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