Probing Columnar Discotic Liquid Crystals by EPR Spectroscopy with a Rigid-Core Nitroxide Spin Probe

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Abstract

Discotics studied by EPR: The application of EPR spectroscopy to columnar discotic liquid crystals using a novel rigid-core nitroxide spin probe (see picture) is possible. EPR spectra measured at different temperatures across three phases of hexakis(n-hexyloxy)triphenylene show a strong sensitivity to the phase composition, molecular rotational dynamics, and columnar order.
Original languageEnglish
Pages (from-to)8917-8920
Number of pages4
JournalAngewandte Chemie International Edition
Volume52
Issue number34
DOIs
Publication statusPublished - 19 Aug 2013

Keywords

  • liquid crystals
  • EPR spectroscopy
  • molecular dynamics
  • phase transitions
  • spin probes

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