Synthesis of New 2-(2´-Hydroxyaryl)benzotriazoles and Evaluation of Their Photochemical Behavior as Potential UV-Filters
作者:Renata Farkas、Virginie Lhiaubet-Vallet、Jordi Corbera、Mercedesz Törincsi、Olga Gorchs、Carles Trullas、Oscar Jiménez、Miguel A. Miranda、Lajos Novak
DOI:10.3390/molecules15096205
日期:——
Two new 2-(2´-hydroxyaryl)benzotriazole derivatives were synthesized and studied by photophysical and photochemical techniques in order to assess their ability to act as UV-filters. The absorption and emission properties of both compounds were determined in solvents of different polarity. In non polar solvent, a photoinduced excited state intramolecular proton transfer was established leading to efficient non radiative dissipation of UV-energy. In addition, the compounds considered were photostable under irradiation with simulated sunlight.
两种新型2-(2'-羟基苯基)苯并三唑衍生物通过光物理和光化学技术合成并研究,以评估它们作为紫外线滤光剂的能力。在不同极性的溶剂中,测定了这两种化合物的吸收和发射特性。在非极性溶剂中,建立了光诱导激发态分子内质子转移,导致紫外线能量的有效非辐射耗散。此外,这些化合物在模拟阳光照射下表现出光稳定性。