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Photosynergetic amplification of radiation input: from efficient UV induced cycloreversion to sensitive X-ray detection

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Abstract

Five photochromic terarylenes which show reversible photocyclisation and cycloreversion with relatively high quantum yields are presented. Some of these have been observed to undergo a highly efficient cycloreversion cascade process from their coloured, closed forms to their uncoloured open forms that leads to cycloreversion quantum yields significantly larger than unity. This cascade effect can been induced with both chemical and X-ray initiation; the limit of detection from X-ray initiation has been tested and is comparable to existing systems with detection observed at values as low as 0.3 mGy.

Graphical abstract: Photosynergetic amplification of radiation input: from efficient UV induced cycloreversion to sensitive X-ray detection

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Article information


Submitted
27 Oct 2019
Accepted
23 Jan 2020
First published
23 Jan 2020

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2020, Advance Article
Article type
Edge Article

Photosynergetic amplification of radiation input: from efficient UV induced cycloreversion to sensitive X-ray detection

R. Asato, C. J. Martin, J. P. Calupitan, R. Mizutsu, T. Nakashima, G. Okada, N. Kawaguchi, T. Yanagida and T. Kawai, Chem. Sci., 2020, Advance Article , DOI: 10.1039/C9SC05380H

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