Abstract
The fluorescence behaviour of substituted dialkyl-aminobenzoic esters was investigated in different thermotropic 4-cyano-bicyclohexyl-4'-alkyl compounds. It was found that these materials show more than one charge-transfer emission. This behaviour is unusual and it is dependent on the nature of the probe, the nature of the mesophase and the structure of the liquid-crystalline compound itself. Guest-host and host-host interactions are discussed for a complete understanding of the probe behaviour. Both stationary and time-resolved fluorescence measurements indicate that guest-guest interactions dominate more in the smectic phase than in the nematic phase. Furthermore, the formation of the charge transfer occurs faster in the nematic phase than in the smectic phase.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
