Alignment of N@C60 Derivatives in a Liquid Crystal Matrix

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• 作者：Guoquan Liu ; Maria del Carmen Gimenez-Lopez ; Martyn Jevric ; Andrei N. Khlobystov ; G. Andrew D. Briggs ; Kyriakos Porfyrakis
• 刊名：The Journal of Physical Chemistry B
• 出版年：2013
• 出版时间：May 16, 2013
• 年：2013
• 卷：117
• 期：19
• 页码：5925-5931
• 全文大小：361K
• 年卷期：v.117,no.19(May 16, 2013)
• ISSN：1520-5207

文摘

The orientation of different N-substituted [N@C₆₀]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.