Study on the Inclusion Behavior of Cucurbit [n] uril with Phenylalanine

Ning Chen; Ya Bin Li

doi:10.4028/www.scientific.net/AMR.197-198.1153

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 197-198Study on the Inclusion Behavior of Cucurbit [n]...

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.

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Periodical:

Advanced Materials Research (Volumes 197-198)

Pages:

1153-1156

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.197-198.1153

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Online since:

February 2011

Authors:

Ning Chen, Ya Bin Li

Keywords:

Cucurbit[n]uril, Host-Guest Complex, Pharmaceutical Analysis, Phenylalanine, Supramolecular Chemistry

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