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Easy and efficient tuning of the photochromic properties of 1,2-bis[5′-methyl-2′-(2″-pyridyl)thiazolyl]perfluorocyclopentene

✍ Scribed by Marion Giraud; Anne Léaustic; Régis Guillot; Pei Yu; Francois Maurel; Keitaro Nakatani

Book ID
104096209
Publisher
Elsevier Science
Year
2009
Tongue
French
Weight
464 KB
Volume
50
Category
Article
ISSN
0040-4039

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✦ Synopsis

Photochromic properties of the tilted compound could be easily tuned by simple oxidation of the peripheral pyridine groups by mCBPA. The mono-and bis-oxidized dithiazolylethenes were found to display both solution and single crystalline state photochromisms.

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Polymorphism of 1,2-Bis(2-methyl-5-p-methoxyphenyl-3-thienyl)perfluorocyclopentene and Photochromic Reactivity of the Single Crystals
✍ Masakazu Morimoto; Seiya Kobatake; Masahiro Irie 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 202 KB 👁 2 views

## Abstract Four polymorphic crystals were obtained by recrystallization of 1,2‐bis(2‐methyl‐5‐__p__‐methoxyphenyl‐3‐thienyl)perfluorocyclopentene (**1 a**) from hexane. All crystals underwent photochromic reactions upon alternate irradiation with ultraviolet (__λ__=370 nm) and visible light (__λ__