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Wang, K., Guo, D.S., Zhang, H.Q., Li, D., Zheng, X.L. and Liu, Y. (2009) Highly Effective Binding of Viologens by p-Sulfonatocalixarenes for the Treatment of Viologen Poisoning. Journal of Medicinal Chemistry, 52, 6402-6412.

has been cited by the following article:

• TITLE: Study on Complex Formation of Fluorescein-p-Sulfonatocalix[4]arene by Spectroscopic Methods

  AUTHORS: Sharadchandra Gawhale, Yogita Thakare, Dipalee Malkhede, Gajanan Chaudhari

  KEYWORDS: p-Sulfonatocalix[4]arene, Fluorescein, Electrostatic Interactions, Hydrophobic Interaction, 1H NMR Analysis

  JOURNAL NAME: Optics and Photonics Journal, Vol.4 No.9, September 25, 2014

  ABSTRACT: The aqueous solution of p-Sulfonatocalix[4]arene-fluorescein complex has been studied based on fluorescence and 1H NMR spectroscopic results. It has been found that the fluorescence intensity quenches regularly upon addition of p-SCX4. The proposed interaction mechanism between p-SCX4 and FL indicates that FL partially goes into the cavity of p-SCX4 with the help of strong electrostatic and π-π* interaction. The quenching constants and stability constants are determined by p-SCX4-FL systems. The proposed inclusion complex is discussed on 1H NMR results. Results are consistent with experimental data obtained from NMR spectroscopy.