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

• 作者: Dipalee Malkhede Gajanan Chaudhari Sharadchandra Gawhale Yogita Thakare
• 来源期刊: 光学与光子学期刊(英文)
• 学科: 化学
• 关键词: arene FLUORESCEIN Electrostatic Interactions HYDROPHOBIC Interaction 1H NMR Analysis
• 年，卷（期）: 2014,（9）
• 页码范围: 237-245
• 页数: 9页
• 分类号: O6

摘要

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.