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A Self-recovering Mechanochromic Chiral Pi-gelator

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dc.contributor.author K K, Kartha
dc.contributor.author V S, Nair
dc.contributor.author V K, Praveen
dc.contributor.author M, Takeuchi
dc.contributor.author A, Ajayaghosh
dc.date.accessioned 2020-02-26T08:57:32Z
dc.date.available 2020-02-26T08:57:32Z
dc.date.issued 2019-02-07
dc.identifier.citation Journal of Materials Chemistry C; 7(5):1292-1297 en_US
dc.identifier.uri https://pubs.rsc.org/en/content/articlepdf/2019/tc/c8tc05159c
dc.description.abstract Mechanochromism is a stress induced perturbation of electronic property in molecular materials. It is shown here that the presence of a branched chiral chain facilitates mechanochromic response in a molecular assembly as illustrated with a chiral oligo(p-phenylenevinylene) derived -gelator (OPVC). OPVC exhibits a reversible mechanochromism while the analogous achiral derivative (OPVA) having a linear side chain does not, as established from the fluorescence and circular dichroism (CD) studies. The helically twisted chromophore packing in OPVC allows mechanical reorganization of the self-assembly and the associated fluorescence intensity variation at different wavelength positions in the broad emission spectrum, resulting in a perturbation in the colour ratio leading to the observed mechanochromic emission color change. This exciting new finding may have wide ranging implications in the design of stimuli responsive molecular materials with reversible optical properties. en_US
dc.language.iso en en_US
dc.publisher Royal Society of Chemistry en_US
dc.subject OPVC en_US
dc.subject OPVA en_US
dc.subject mechanochromism en_US
dc.subject branched chiral chain en_US
dc.title A Self-recovering Mechanochromic Chiral Pi-gelator en_US
dc.type Article en_US

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  • 2019
    Research articles authored by NIIST researchers published in 2019

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