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Title: | Chiral biphenylacetylene smectic liquid crystals |
Authors: | Vega, Laura de; Hennrich, Gunther; Omenat, Ana; Tejedor, Rosa M.; Barberá, Joaquín; Gómez-Lor, Berta ![]() |
Issue Date: | 2010 |
Publisher: | American Chemical Society |
Citation: | Journal of Physical Chemistry B 114(14): 4811-4815 (2010) |
Abstract: | Standard Sonogashira coupling afforded rod-like, phenylacetylene extended biphenyl mesogens substituted with different chiral alkoxy chains, starting from commercially available 4-(4′-bromophenyl)phenol. Depending on the position of the chiral center and the polar nature of the target molecules as determined by the electron withdrawing end-groups, different types of smectic liquid crystals are formed. The liquid crystal phases are fully characterized by polarized optical microscopy, differential scanning calorimetry, and X-ray diffraction. In two cases, the molecular chirality is transferred to the supramolecular assembly, which is proved by circular dichroism measurements in the chiral mesophase. © 2010 American Chemical Society. |
URI: | http://hdl.handle.net/10261/52488 |
DOI: | http://dx.doi.org/10.1021/jp1004727 |
Identifiers: | doi: 10.1021/jp1004727 issn: 1520-6106 e-issn: 1520-5207 |
Appears in Collections: | (ICMA) Artículos (ICMM) Artículos |
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