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Alignment of [email protected] derivatives in a liquid crystal matrix.

Authors
  • Liu, Guoquan
  • Gimenez-Lopez, Maria del Carmen
  • Jevric, Martyn
  • Khlobystov, Andrei N
  • Briggs, G Andrew D
  • Porfyrakis, Kyriakos
Type
Published Article
Journal
The Journal of Physical Chemistry B
Publisher
American Chemical Society
Publication Date
May 16, 2013
Volume
117
Issue
19
Pages
5925–5931
Identifiers
DOI: 10.1021/jp401582j
PMID: 23586675
Source
Medline
License
Unknown

Abstract

The orientation of different N-substituted [[email protected]]fulleropyrrolidine derivatives hosted in a nematic liquid crystal matrix has been studied by electron spin resonance spectroscopy. In this study, variations on the zero field splitting parameter of the guest species are employed as a means of determining their degree of orientation. Fulleropyrrolidines with more rigid N-substituents are preferentially oriented in the liquid crystal matrix, whereas those with less rigid substituents are almost randomly distributed. Additionally, the orientation of a C60 fullerene cage bearing a nitroxide radical has also been investigated in comparison.

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