The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. Name: Bis(4-Fluorophenyl)methanone, 345-92-6, Name is Bis(4-Fluorophenyl)methanone, SMILES is FC1=CC=C(C=C1)C(=O)C1=CC=C(F)C=C1, in an article , author is Liu, Shuang, once mentioned of 345-92-6.
The effect of benzoxazole unit on the properties of cyclic thiourea functionalized triphenylamine dye sensitizers
Two D-pi-A-A sensitizers (AZ6-B20 and AZ6-B21) were synthesized by inserting the benzoxazole group as an auxiliary acceptor between the pi-linker and the acceptor. And a D-A-pi-A sensitizer (AZ6-B19) was also synthesized in our previous works by the insertion of the benzoxazole between the donor and the pi-linker. The effects of benzoxazole groups on the properties at different sites of dye sensitizers were distinguishing. Their light harvest abilities were investigated by UV-vis spectra both in the solution and on the films. The results show that the absorption bands of UV-vis spectra are quite different from D-A-pi-A and D-pi-A-A dyes. The much more intensive molar extinction coefficients (53807 M-1 cm(-1) and 52555 M-1 cm(-1)) were observed at around 575 nm for D-pi-A-A dyes. The photovoltaic properties of DSSCs were also evaluated by J-V curves and IPCE measurements. The results confirmed that D-pi-A-A dyes delivered high photovoltaic efficiency (AZ6-B20: 7.48%, AZ6-B21: 8.67%) compared with that of D-A-pi-A dye (AZ6-B19: 3.27%). The details on the relation of the structures/ properties were discussed by the optical physical absorption, electrical chemical measurements and DFT calculations.
But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 345-92-6, you can contact me at any time and look forward to more communication. Name: Bis(4-Fluorophenyl)methanone.
Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem