Tydlitat, Jiri published the artcileInfluence of Donor-Substituents on Triphenylamine Chromophores Bearing Pyridine Fragments, Quality Control of 596819-12-4, the publication is European Journal of Organic Chemistry (2019), 2019(9), 1921-1930, database is CAplus.
Efficient synthetic routes that combine different palladium-catalyzed cross-coupling reactions were developed for the preparation of a new family of push-pull derivatives in which pyridine was used as the acceptor group and different para-substituted diphenylamines as the donor groups. All compounds showed absorption in the UV/visible region and blue-green emission with high quantum yields. Significant red shifts were observed in the absorption and fluorescence emission maxima on increasing the electron-donating ability of the substituents or on incorporating a π-conjugated linker. This finding can be explained on the basis of enhanced intramol. charge transfer (ICT). Strong emission solvatochromism confirmed the formation of an intramol. charge-separated emitting state. The HOMO-LUMO energy gaps were estimated by exptl. electrochem. measurements and the results were interpreted with the aid of DFT calculations The thermal behavior of all materials also was studied by DSC.
European Journal of Organic Chemistry published new progress about 596819-12-4. 596819-12-4 belongs to ethers-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Ether,Boronate Esters,Boronic acid and ester, name is 2-(5-Methoxythiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C3H6BrNaO3S, Quality Control of 596819-12-4.
Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem