Mesogenic 3,6-bis(4-hydroxyphenyl)-1,2,4,5-tetrazine alkanoate esters |
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| Authors: | Farid Fouad Faycal Khabouchi Alek Nielsen Robert Twieg |
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| Institution: | 1. Department of Chemistry &2. Biochemistry, Kent State University, East Liverpool Campus, East Liverpool, Ohio, USA;3. Biochemistry, Kent State University, Kent, Ohio, USA |
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| Abstract: | A novel series of 3,6-bis(4-hdroxyphenyl)-1,2,4,5-tetrazine alkanoate esters were synthesized and their mesogenic properties were studied using differential scanning calorimetry (DSC) and polarizing optical microscopy (POM). The impact of changing the tail-core linkage from alkyl or alkoxy to ester is profound. Compared to the alkyl or alkoxy linkages, the ester linkage reduced mesogenic properties. Short-tailed compounds are non mesogenic (4a-4e), while long-tailed compounds (4f-4r) exhibit nematic phases. Unlike the alkyl or alkoxy tail series, none of the 18 presented esters in this series exhibits a smectic phase. |
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| Keywords: | Tetrazines |
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