Long-living optical gain induced by solvent viscosity in a push-pull moleculeElectronic supplementary information (ESI) available: Experimental methods. CCDC 1440457 (1). For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c6cp02988d

• Main Authors: Mróz, M. M, Benedini, S, Forni, A, Botta, C, Pasini, D, Cariati, E, Virgili, T
• Format: Journal Article
• Published: 06.07.2016
• ISSN: 1463-9076; 1463-9084
• DOI: 10.1039/c6cp02988d

The combination of continuum and ultrafast pump-probe spectroscopy with DFT and TDDFT calculations, in viscous and non-viscous environments, is effective in unraveling important features of the twisted intramolecular charge transfer mechanism in a new push-pull molecule that possesses aggregation induced emission properties. Long-living optical gain is found when this mechanism is inhibited, highlighting the importance of the environment rigidity in the design of materials for photonic applications. The combination of continuum and ultrafast pump-probe spectroscopy, in viscous and non-viscous environments, with DFT and TDDFT calculations, is effective in unraveling important features of the twisted intramolecular charge transfer mechanism in a new push-pull molecule that possesses aggregation induced emission properties.