Li, Jiting published the artcileSynthesis and properties of pyridyl dithienyl ethene axially coordinated to Mn(II)-porphyrin, COA of Formula: C15H14Cl2S2, the publication is Yingyong Huaxue (2017), 34(4), 402-407, database is CAplus.
Organic photochromic materials have bottleneck problems including low photon yield, poor fatigue resistance and destruction of recorded information after read-out in practical application. In this paper the pyridyl dithienyl ethene axially coordinated to Mn(II)-porphyrin was synthesized by 1-(5-chloro-2-methylthien-3-yl)-2-[5-pyridyl-2-methylthien-3-yl] cyclopentene via halogenations, Friedel-Crafts acylation, McMurry coupling and Suzuki coupling by using 2-methyl-thiophene as the starting material coordinating with Mn(II)-porphyrin. Photochromic properties and fatigue resistance of the target compound were investigated by UV-visible (UV-Vis) spectrum, and the function of nondestructive readout was also reached by fluorescence spectrum. The exptl. results indicate that the target compound possesses good photochromic properties and fatigue resistance, and the ”write-read-erase” process can be achieved by using the light of 254 nm, 490 nm, and 550 nm, resp., without concomitant loss of data which is expected to be used in binary storage devices.
Yingyong Huaxue 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, COA of Formula: C15H14Cl2S2.
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