RBAP, a Rhodamine B-Based Derivative: Synthesis, Crystal Structure Analysis, Molecular Simulation, and Its Application as a Selective Fluorescent Chemical Sensor for Sn2+
Xiaofeng Bao,
Xiaowei Cao,
Xuemei Nie,
Yanyan Jin,
Baojing Zhou
Affiliations
Xiaofeng Bao
Department of Biochemical Engineering, Nanjing University of Science & Technology, Chemical Engineering Building B308, 200 Xiaolinwei, Nanjing 210094, China
Xiaowei Cao
Department of Biochemical Engineering, Nanjing University of Science & Technology, Chemical Engineering Building B308, 200 Xiaolinwei, Nanjing 210094, China
Xuemei Nie
Department of Chemistry, School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
Yanyan Jin
Department of Biochemical Engineering, Nanjing University of Science & Technology, Chemical Engineering Building B308, 200 Xiaolinwei, Nanjing 210094, China
Baojing Zhou
Department of Chemistry, School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
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+.
