Paper Title:
Study on the Inclusion Behavior of Cucurbit [n] uril with Phenylalanine
  Abstract

The characteristics of host-guest complexes between cucurbit[n]uril (CB [n]) and phenylalanine were investigated by UV-visible absorption spectroscopy in acetate buffer solution at room temperature. It was found that the UV-visible absorption increased steadily with constantly dropping the high concentration of cucurbit[6]uril (CB [6]) and cucurbit[8]uril (CB [8]) in the phenylalanine solution which indicates that there are some interaction betweenCB [n] and phenylalanine.Then CB [6] and phenylalanine at molar ratio of 1:1 to weigh while CB [8] and phenylalanine at molar ratio of 1:2, respectively, are both demonstrated by 1H NMR spectra. 1H NMR spectrum of complexes was obtained, indicating an enthalpic driving force for host-guest complexes. The possible interaction mechanism and inclusion mode were also discussed. This work may extend the application range of CB [n] in supramolecular and pharmaceutical analysis.

  Info
Periodical
Advanced Materials Research (Volumes 197-198)
Edited by
Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng
Pages
1153-1156
DOI
10.4028/www.scientific.net/AMR.197-198.1153
Citation
N. Chen, Y. B. Li, "Study on the Inclusion Behavior of Cucurbit [n] uril with Phenylalanine", Advanced Materials Research, Vols. 197-198, pp. 1153-1156, 2011
Online since
February 2011
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