Redox Photochromism of Arylviologen Crystals
نویسندگان
چکیده
منابع مشابه
Photochromism of diarylethene molecules and crystals
Photochromism is defined as a reversible transformation of a chemical species between two isomers upon photoirradiation. Although vast numbers of photochromic molecules have been so far reported, photochromic molecules which exhibit thermally irreversible photochromic reactivity are limited to a few examples. The thermal irreversibility is an indispensable property for the application of photoc...
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Three dithienylethene derivatives having anthracene substituents (connected at 1-, 2- and 9-positions) were prepared. Although these three derivatives exhibit photochromic reactivity in solution, only one of the derivatives (connected at 2-position) undergoes the photochromic reaction in the crystalline phase. X-Ray crystallographic analysis and DFT calculation revealed that conformation of the...
متن کاملInvisible photochromism of diarylethene derivatives.
Diarylethene derivatives with oxidized thiophene rings shift their absorption band to a shorter wavelength in the UV region upon photocyclization; no color change was observed during the photochromic reaction, and the invisible photochromism is advantageous for devices used under room light.
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Redox-active ferrocene- and triarylamine-terminated diethynylethene derivatives have been synthesized and their photochromic properties and switching behavior based on through-bond electronic communication between the two redox sites, as well as their emissions, have been examined. Both bis(ferrocenylethynyl)ethene 1 and bis(triarylaminoethynyl)ethene 2 show visible-light photochromism induced ...
متن کاملSite effects in controlling the chemical reactivity in crystals: solid-state photochromism of N-(n-propyl)nitrospiropyrane.
The dynamics of decay of the photoproducts of the two non equivalent molecules of N-(n-propyl) nitrospiropyrane in the crystalline state is significantly different due to the effect of the specific site where each of the molecules is located in the crystal latice.
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1991
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.64.321