Tailoring discotic mesophases: columnar order enforced with hydrogen bonds

R. Gearba, M. Lehmann, J. Levin, D. A. Ivanov, J. Barbera, M.G. Debije, J. Piris, Y.H. Geerts

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Hydrogen bonding can be used to significantly enforce the intra-columnar stacking order in discotic mesogens. The ordered hexagonal columnar mesophase of a HAT-CONHR derivative is characterized by the smallest inter-disk distance ever found in columnar liquid crystals (3.18–3.20 Å). This additional attractive interaction between the disks in the column results in a regular disc stacking and thus in a high charge-carrier mobility over the whole investigated temperature range (from room temperature up to 200¿°C).
Original languageEnglish
Pages (from-to)1614-1618
JournalAdvanced Materials
Issue number19
Publication statusPublished - 2003


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