70880 20190709135502.0 doi 10.1016/j.dyepig.2017.02.048 sideral 98619 ART-2017-98619 eng Torres, I. Tunable emission in aggregated T-Shaped 2H-Benzo[d][1, 2, 3]triazoles with waveguide behaviour 2017 Access copy available to the general public Unrestricted Symmetrical Donor-Acceptor-Donor (D-A-D) 2H-benzod]1, 2, 3]triazole derivatives have been designed by DFT calculations and prepared by a multistep synthetic protocol. The design strategy involved the identification of a suitable acceptor benzotriazole core and modification of the steric volume and donor strength of the branches in order to modulate the Intramolecular Charge Transfer (ICT) process and, consequently, the band gap. Self-assembly of the reported triazoles afforded organized supramolecular structures, the morphologies of which were visualized by SEM imaging. The outcomes demonstrated the effect that the donor moiety has on the emission properties and the morphologies of the aggregates. The aggregates that had a crystal-like structure, with smooth surfaces and flat end facets, exhibited optical waveguide behaviour with tunable colour emission. Depending on the initial design, the different emission wavelengths are related to the band gap of the benzotriazole derivatives. info:eu-repo/grantAgreement/ES/DGA/E39 info:eu-repo/grantAgreement/ES/MINECO/CTQ2014-52331-R info:eu-repo/grantAgreement/ES/MINECO/CTQ2014-53600-R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.767 2017 CHEMISTRY, APPLIED 11 / 71 = 0.155 2017 Q1 T1 MATERIALS SCIENCE, TEXTILES 2 / 24 = 0.083 2017 Q1 T1 ENGINEERING, CHEMICAL 25 / 137 = 0.182 2017 Q1 T1 0.819 2017 Process Chemistry and Technology 2017 Q1 Chemical Engineering (miscellaneous) 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Díaz-Ortiz, A. Sánchez, L. (orcid)0000-0003-3514-2570 Orduna, J. Universidad de Zaragoza (orcid)0000-0001-7193-1732 Blesa, M. J. Universidad de Zaragoza Carrillo, J. R. Prieto, P. 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 142 (2017), 212-225 Dyes pigm. Dyes and Pigments 0143-7208 923578 http://zaguan.unizar.es/record/70880/files/texto_completo.pdf Postprint 60400 http://zaguan.unizar.es/record/70880/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:70880 articulos driver 2019-07-09-11:46:58 ARTICLE