Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 353096
Title Liquid crystalline dimers with bent-core mesogenic units
Author(s) Achten, R.; Koudijs, A.; Giesbers, M.; Marcelis, A.T.M.; Sudhölter, E.J.R.; Schroeder, M.W.; Weissflog, W.
Source Liquid Crystals 34 (2007)1. - ISSN 0267-8292 - p. 59 - 64.
DOI https://doi.org/10.1080/02678290601061330
Department(s) Organic Chemistry
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2007
Keyword(s) polar order - achiral molecules - chirality - antiferroelectricity - ferroelectricity - mesophases - spacer - phase
Abstract Two series of dimers, in which two identical aromatic bent core mesogenic units are connected via an organosiloxane or an alkylene spacer, have been investigated. The dimers with a spacer consisting of a trisiloxane central group and relatively long alkylene groups show an intercalated tilted smectic structure. The layer spacings appear to be very weakly dependent on the terminal chain lengths. In these dimers the smectic phase is stabilized for the compounds with a short terminal chain. Dimers with an aliphatic alkylene spacer are liquid crystalline only when the spacer is relatively short and the terminal chains are long. For these dimers a monolayer tilted smectic phase is observed.
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