Kobatake, Seiya published the artcileAcid-induced photochromic system switching of diarylethene derivatives between P- and T-types, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Chemical Communications (Cambridge, United Kingdom) (2007), 1698-1700, database is CAplus and MEDLINE.
Diethylamino-substituted diarylethenes can switch between P-type photochromism (P-type = thermally stable isomers) and T-type (thermally unstable isomers) photochromism upon addition of trifluoromethanesulfonic acid. The protonated closed-form photoinduced color isomers return to open-ring isomers at a fast rate at elevated temperature such as 160° C. The protonation and deprotonation of the open- and closed isomers was reversible. Such photochromic materials could be used as reversible switching materials for write-by-light/erase-by-heat recording.
Chemical Communications (Cambridge, United Kingdom) published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics