Li, Ziyong published the artcileDicyanovinyl-substituted D-A type dithienylethenes: Synthesis, photochromism and colorimetric sensing for cyanide anion, Name: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Optical Materials (Amsterdam, Netherlands) (2019), 109235, database is CAplus.
A series of novel dithienylethene-based colorimetric sensors 1a-1d with a typical donor-acceptor structure have been successfully developed, which exhibited solvent-dependent photochromic properties in solution, as well as high selectivity and sensitivity for the naked-eye detection of cyanide anion in 95% aqueous CH3CN media. Moreover, it was found that different structures had a noteworthy effect on both their photochromic properties and colorimetric sensing for CN–. The sensing mechanism based on the nucleophilic addition reaction with CN– was confirmed by absorption spectral studies, 1H NMR titration and DFT calculations Among them, the sensor 1b displayed highly sensitive to CN– (35 s) and lower detection limit (0.25μM), which can be utilized as a potential colorimetric sensor for CN– in our daily life and environment.
Optical Materials (Amsterdam, Netherlands) 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, Name: 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