Highly durable photochromic radical complexes having no steric protections of radicals

Steric protection groups are usually necessary for stable radicals. However, here, we developed novel photochromic radical complexes which generate sterically unprotected imidazolyl and phenoxyl radicals upon UV light irradiation based on the phenoxyl-imidazolyl radical complex (PIC) framework. Thes...

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Published inChemical communications (Cambridge, England) Vol. 53; no. 31; pp. 4315 - 4318
Main Authors Kobayashi, Yoichi, Mishima, Yasuhiro, Mutoh, Katsuya, Abe, Jiro
Format Journal Article
LanguageEnglish
Published CAMBRIDGE Royal Soc Chemistry 21.04.2017
Subjects
Chemistry
Chemistry, Multidisciplinary
Durability
Ethanol
Ethyl alcohol
Lasers
Light irradiation
Nanostructure
Physical Sciences
Radicals
Science & Technology
Solvents
OPEN-SHELL
2-PHOTON ABSORPTION
MOLECULES
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Summary:Steric protection groups are usually necessary for stable radicals. However, here, we developed novel photochromic radical complexes which generate sterically unprotected imidazolyl and phenoxyl radicals upon UV light irradiation based on the phenoxyl-imidazolyl radical complex (PIC) framework. These photochromic compounds show excellent durability against repeated irradiation of intense nanosecond laser pulses even in polar protic solvents, such as ethanol.
Bibliography:KAKEN
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc01439b