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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2317

Title: Ionic discotic liquid crystals: synthesis and characterization of pyridinium bromides containing a triphenylene core
Authors: Kumar, Sandeep
Pal, Santanu Kumar
Keywords: Ionic liquid crystals
Triphenylene
Discotic liquid crystals
Columnar mesophase
Issue Date: 6-Jun-2005
Publisher: Elsevier B.V.
Citation: Tetrahedron Letters,2005, Vol.46, p4127-4130
Abstract: Five novel pyridinium salts tethered with hexaalkoxytriphenylene molecules were synthesized by the quaternization of pyridine with ω-bromo-substituted triphenylene derivatives. Their chemical structures were determined by 1H NMR, 13C NMR, IR, UV spectroscopy and elemental analysis. The thermotropic liquid crystalline properties of these salts were investigated by polarizing optical microscopy and differential scanning calorimetry. These triphenylene-based pyridinium salts with bromide as counterion were found to be mesomorphic over a wide temperature range.
Description: Restricted Access.
URI: http://hdl.handle.net/2289/2317
ISSN: 0040-4039
Alternative Location: http://dx.doi.org/10.1016/j.tetlet.2005.03.201
Copyright: 2005 Elsevier B.V.
Appears in Collections:Research Papers (SCM)

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