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Mesomorphic behavior of methanesulfonate salts of esters of L-Methionine and their optical properties

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Abstract

A set of methanesulfonate salts of esters of (S)-2-Amino-4-(methylthio)butanoic acid [L-Methionine] and fatty alcohols have been synthesized in good yields by a green protocol involving a one-step and solvent-free approach. All derivatives have been evaluated for their liquid crystalline properties using polarizing optical microscopy and differential scanning calorimetry and found to be enantiotropic liquid crystals. Refractive indices were measured for one of the derivatives at different temperatures and wavelengths. It exhibited a high Abbe number and low dispersive power.

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Acknowledgements

The authors thank the Department of Chemistry, University of Mumbai for financial support and facilities. Sheetal Venkatesh and Pushpa Kumari Yadav also thank UGC, New Delhi for the UGC Non-NET Ph. D Research fellowship.

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Authors and Affiliations

  1. Department of Chemistry, Lokmanya Tilak Bhavan, Vidyanagari, University of Mumbai, Kalina, Santacruz (East), Mumbai, 400 098, Maharashtra, India

    Sheetal Venkatesh, Pushpa Kumari Yadav & M M V Ramana

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  1. Sheetal Venkatesh
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  2. Pushpa Kumari Yadav
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  3. M M V Ramana
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Correspondence to M M V Ramana.

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Venkatesh, S., Yadav, P.K. & Ramana, M.M.V. Mesomorphic behavior of methanesulfonate salts of esters of L-Methionine and their optical properties. J Chem Sci 131, 65 (2019). https://doi.org/10.1007/s12039-019-1644-3

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  • DOI: https://doi.org/10.1007/s12039-019-1644-3

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