Vibrational and optical characterization of s-triazine derivatives
STAGI, LUIGI;CHIRIU, DANIELE;SCHOLZ, MAREK;CARBONARO, CARLO MARIA;CORPINO, RICCARDO;PORCHEDDU, ANDREA;CAPPELLINI, GIANCARLO;CARDIA, ROBERTO;RICCI, PIER CARLO
AbstractThe optical and electron properties of three different s-triazine derivatives are investigated to ascertain the role of the donor acceptor character in amine-triazine systems depending on the bridging radical of the ammine group. The three derivatives were obtained starting from three different ammine compounds allowing to achieve a structure with a triazine core, surrounded by three ammine group and terminated with cyano or methyl or oxy-methyl functional group. Experimental optical data were interpreted in view of the electronic insights gathered by means of density functional theory simulations on base compounds. As compared to the reference electron donating triazine core, the resulting compounds show different donor acceptor character, from electron accepting to electron donating feature. Among the analyzed derivatives, the cyano terminated ammino-triazine compound shows the most promising optical features for photonics and lighting applications.
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