Solvent effects on the structure of benzo[b]selenophene oriented in liquid crystals |
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| Authors: | N Suryaprakash S Raghothama CL Khetrapal AC Kunwar M Baiwir G Llabres |
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| Institution: | Indian Institute of Science, Bangalore 560012 India;Raman Research Institute, Bangalore 560080 India;Institute De Physique, Universite de Liege Belgium |
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| Abstract: | Proton magnetic resonance spectra of benzob]selenophene including 77Se satellites have been investigated in thermotropic liquid crystal solvents. Relative proton-proton and proton-selenium distances have been derived from the dipolar couplings. A comparison of the results on benzob]-furan, -thiophene and -selenophene and the application of bond polarisation hypothesis indicate significant solvent effects in the liquid crystal formed by an eutectic ternary mixture of propylpentyl- and heptyl-bicyclohexylcarbonitrile. |
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| Keywords: | Author to whom correspondence should be addressed |
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