title: Color-Tunable Cyano-Substituted Divinylene Arene Luminogens as Fluorescent π-Gelators.
abstract: The synthesis of three cyano-substituted divinylene π-gelators is reported. The modulation of the color is achieved by placing the cyano groups in appropriate position of the conjugated backbone, thus modulating the donor-acceptor interaction. Variable-temperature UV-vis data have been utilized to investigate the self-assembly of the gelators 1-3 that is governed by a cooperative mechanism. A complete set of photophysical parameters (ΦF,τ, kr and knr) demonstrate the role of the molecular aggregation in enhanced emission upon self-assembly.
authors.affiliation: Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid , 28040 Madrid, Spain.
authors.forename: Fátima
authors.initials: F
authors.lastname: Aparicio
authors.affiliation: Photosciences and Photonics Group, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Trivandrum-695019, India.|Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST , Trivandrum-695019, India.
authors.forename: Sandeep
authors.initials: S
authors.lastname: Cherumukkil
authors.affiliation: Photosciences and Photonics Group, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Trivandrum-695019, India.|Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST , Trivandrum-695019, India.
authors.forename: Ayyappanpillai
authors.initials: A
authors.lastname: Ajayaghosh
authors.affiliation: Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid , 28040 Madrid, Spain.
authors.forename: Luis
authors.initials: L
authors.lastname: Sánchez