2026-06-02T16:18:21Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/170862026-02-03T11:47:24Zcom_10630_2254col_10630_37959

Multiresponsive chromic soft materials: formation of strongly coupled σ-dimers from IndoloCarbazole-based biradicaloids Hartl, Frantisek Li, Hongxiang Badía-Domínguez, María Irene Sancho-García, Juan C. Pérez Guardiola, Andrés Rodríguez-González, Sandra López-Navarrete, Juan Teodomiro Hernández-Jolín, Víctor Ruiz-Delgado, María del Carmen Resistencia de materiales Dynamic covalent chemistry is focused on the creation of structural scaffolds based on chemical components that interact through strong but reversible bonds. In fact, dynamic covalent bonds receive lot of attention because of their unique feature to become reversible under mild conditions.1 π-conjugated biradical compounds has emerged as essential building blocks in DCC (dynamic covalent chemistry).2 We have recently demonstrated the potential of a para-substituted carbazole with terminal dicyanomethylene groups to act as building blocks in DCC.3 In fact, this quinoid carbazole monomer transform to a macrocycle cyclophane upon soft external stimuli (temperature, pressure, light), showing strong chromic features. Here, we explore the effect of the elongation of the carbazole backbone on the formation of stimuli-responsive cyclophanes by self-assembly. To this end, we use a join experimental and theoretical approach that links vibrational spectroscopy (Raman and IR) with DFT calculations 2018-12-18T11:58:53Z 2018-12-18T11:58:53Z 2018-12-18T11:58:53Z 2018-12-18 conference output https://hdl.handle.net/10630/17086 eng 3rd Edition Progress in Organic Optoelectronics and Energy Conversion Madrid 13-14 diciembre 2018 http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional