RT Journal Article T1 Extended Alkenyl and Alkynyl Benzotriazoles with enhanced Two‐Photon Absorption properties as a promising alternative to Benzothiadiazoles A1 Torres-Moya, Ivan A1 Benítez-Martín, Carlos A1 Donoso, Beatriz A1 Tardio, Carlos A1 Martin, Raul A1 Carrillo, Jose Ramon A1 Diaz-Ortiz, Angel A1 Nájera-Albendín, Francisco A1 Prieto, Pilar A1 Perez-Inestrosa, Ezequiel K1 Fluorescencia AB A series of donor–p–acceptor–p–donor (D-p-A-p-D) benzoazole dyes with 2H-benzo[d][1,2,3]triazole or BTDcores have been prepared and their photophysical proper-ties characterized. The properties of these compounds dis-play remarkable differences, mainly as a result of the elec-tron-donor substituent. Dyes with the best properties havevisible-light absorption over l = 400 nm, large Stokes shiftsin the range of about 3500–6400 cm@1, and good fluores-cence emission with quantum yields of up to 0.78. The two-photon absorption properties were also studied to establishthe relationship between structure and properties in the dif-ferent compounds synthesized. These results provided crosssections of up to 1500 GM, with a predominance of S2! S0transitions and a high charge-transfer character. Time-depen-dent DFT calculations supported the experimental results. PB Wiley-VCH Verlag GmbH & Co YR 2019 FD 2019 LK https://hdl.handle.net/10630/36107 UL https://hdl.handle.net/10630/36107 LA eng NO I. Torres-Moya, C. Benitez-Martin, B. Donoso, C. Tardío, R. Martín, J. R. Carrillo, Á. Díaz-Ortiz, F. Najera, P. Prieto, E. Perez-Inestrosa, Extended Alkenyl and Alkynyl Benzotriazoles with enhanced Two‐Photon Absorption properties as a promising alternative to Benzothiadiazoles. Chem. Eur. J. 2019, 25, 15572 NO Spanish Ministerio de Economía, Industria y Competitividad (Junta de Comunidades de Castilla-La Mancha, FEDERInstituto de Salud Carlos III Consejería de Salud Junta de Andalucía DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026