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Title: 2-Methoxypyridine derivatives: Synthesis, liquid crystalline and photo-physical properties
Authors: Ahipa, T.N.
Adhikari, A.V.
Issue Date: 2014
Citation: New Journal of Chemistry, 2014, Vol.38, 10, pp.5018-5029
Abstract: We herein report the design and synthesis of fourteen new bent shaped luminescent mesogens carrying a pyridine core substituted with various polar groups. They possess a slightly non-planar bent conformation with various intermolecular interactions, as evidenced by their single crystal X-ray diffraction study, and exhibit an ambient to elevated temperature liquid crystalline phase (N or Colr), which has been confirmed by differential scanning calorimetry, polarized optical microscopy, and powder X-ray diffraction techniques. In these compounds, the nature of polar substituents influences significantly the formation of the mesophase over a wide thermal range. The appearance of the nematic phase is due to the presence of the lateral CN group attached to the pyridine core and the terminal F or Cl substituent. The formation of a rectangular columnar phase is attributed to the absence of the lateral CN group in the pyridine core and the presence of the terminal Br, NO2 or 4-pyridyl group. 2014 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.
URI: 10.1039/c4nj00911h
Appears in Collections:1. Journal Articles

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