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RBAP, a rhodamine B-based derivative: synthesis, crystal structure analysis, molecular simulation, and its
Xiaofeng Bao1, Xiaowei Cao2, Xuemei Nie3
1Department of Biochemical Engineering, Nanjing University of Science & Technology, Chemical Engineering Building B308, 200 Xiaolinwei, Nanjing 210094, China. baoxiaofeng@mail.njust.edu.cn.
Abstract:
A new fluorescent chemosensor based on a Rhodamine B and a benzyl 3-aminopropanoate conjugate (RBAP) was designed, synthesized, and structurally characterized. Its single crystal structure was obtained and analyzed by X-ray analysis. In a MeOH/H2O (2:3, v/v, pH 5.95) solution RBAP exhibits a high selectivity and excellent sensitivity for Sn2+ ions in the presence of many other metal cations. The binding analysis using the Job's plot suggested the RBAP formed a 1:1 complex with Sn2+.
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