Induced smectic G phase through intermolecular hydrogen bonding

P. A. Kumar, M. Srinivasulu, V. G.K.M. Pisipati

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

A new series of mesomorphic complexes formed through intermolecular hydrogen bonding between p-n-alkoxybenzoic acids (where alkoxy denotes chains from propoxy- to decyloxy- and dodecyloxy-) and non-mesogenic p-hydroxybutyl benzoate, have been synthesized and characterized by thermal microscopy, differential scanning calorimetry, infrared spectroscopy (IR) and 1H NMR studies. A detailed IR spectral investigation in the solid state and in solution suggests that the acid and phenol groups are complementary to each other, each acting as both proton donor and proton acceptor. The results of comparative thermal analyses of both free p-n-alkoxybenzoic acids and H-bonded complexes exhibited an induced crystal smectic G phase in the complexes throughout the series, its thermal range increasing with alkoxy carbon number.

Original languageEnglish
Pages (from-to)1339-1343
Number of pages5
JournalLiquid Crystals
Volume26
Issue number9
DOIs
Publication statusPublished - 01-01-1999

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Hydrogen bonds
acids
Acids
Protons
Infrared spectroscopy
hydrogen
infrared spectroscopy
protons
Benzoates
Phenol
phenols
Phenols
Differential scanning calorimetry
Microscopic examination
Carbon
heat measurement
Nuclear magnetic resonance
microscopy
solid state
nuclear magnetic resonance

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Kumar, P. A. ; Srinivasulu, M. ; Pisipati, V. G.K.M. / Induced smectic G phase through intermolecular hydrogen bonding. In: Liquid Crystals. 1999 ; Vol. 26, No. 9. pp. 1339-1343.
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Induced smectic G phase through intermolecular hydrogen bonding. / Kumar, P. A.; Srinivasulu, M.; Pisipati, V. G.K.M.

In: Liquid Crystals, Vol. 26, No. 9, 01.01.1999, p. 1339-1343.

Research output: Contribution to journalArticle

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