Structure–property relationships in lath-shaped triads based on multialkynylbenzene |
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Authors: | Monika Gupta |
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Institution: | Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali (IISERM), Manauli, India |
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Abstract: | This report elaborates the synthesis of symmetrical triads based on multialkynylbenzene linked via flexible alkyl spacers. Four mesogens were synthesised in which multialkynylbenzene units were connected to each other in a side-by-side fashion with varying flexible alkyl spacers. The compound with longest alkyl spacer, i.e. n = 7, exhibited ND phase which has been characterised by polarised optical microscopy and detailed X-ray scattering studies (small/wide-angle X-ray scattering). Surprisingly, this triad shows ND phase at high temperature as compared to our previous reports on room-temperature ND phases. |
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Keywords: | Liquid crystals multialkynylbenzene nematic discotic triad |
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