In 2016,Kim, Juae; Lee, Jihoon; Chae, Sangmin; Shim, Joo Young; Lee, Dal Yong; Kim, Il; Kim, Hyo Jung; Park, Sung Heum; Suh, Hongsuk published 《Conjugated polymers containing pyrimidine with electron withdrawing substituents for organic photovoltaics with high open-circuit voltage》.Polymer published the findings.Application In Synthesis of 2,4,6-Trichloropyrimidine The information in the text is summarized as follows:
Polymers using 6-(2-thienyl)-4H-thieno[3,2-b]indole (TTI) with high planarity were synthesized and utilized for the photovoltaics. Push-pull types of conjugated polymers (PTTICN, PTTICNR and PTTIFR) containing TTI as electron pushing unit and 2-pyriminecarbonitrile or 2-fluoropyrimidine as electron pulling unit were synthesized. We designed pyrimidine derivatives with strong electron-withdrawing group (CN or fluorine) for the generation of strong electron pulling property. By the combination with the electron pushing unit, the pyrimidines with strong electron pulling units will provide low HOMO (HOMO) energy levels for higher open-circuit voltages (VOC). For the syntheses of the polymers, the electron pushing and the electron pulling units were combined by Stille coupling reaction with Pd(0)-catalyst. The polymers of PTTICN and PTTICNR with CN unit show higher VOC than the polymer with fluorine unit. The device comprising PTTICNR and PCBM (1:4) with diiodooctane (DIO) additive showed a VOC of 0.82 V, a JSC of 6.38 mA/cm2, and a fill factor (FF) of 0.53, giving a power conversion efficiency of 2.81%. In the experiment, the researchers used 2,4,6-Trichloropyrimidine(cas: 3764-01-0Application In Synthesis of 2,4,6-Trichloropyrimidine)
2,4,6-Trichloropyrimidine(cas: 3764-01-0) is a member of organic chlorides. Organic chloride content in crude oil can be detected through specialized laboratory analysis. Care and attention are essential while sampling and testing.Application In Synthesis of 2,4,6-Trichloropyrimidine
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia