Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, China.
Molecules. 2017 Oct 16;22(10):1741. doi: 10.3390/molecules22101741.
A new highly selective and sensitive fluorescent probe for Cu, --butyl-4-(1'-cyclooctene-1',3',6'-triazole)-1,8-naphthalimide (), was synthesized and evaluated. The structure of compound was characterized via IR, ¹H-NMR, C-NMR and HRMS. The fluorescent probe was quenched by Cu with a 1:1 binding ratio and behaved as a "turn-off" sensor. An efficient and sensitive spectrofluorometric method was developed for detecting and estimating trace levels of Cu in EtOH/H₂O. The ligand exhibited excitation and emission maxima at 447 and 518 nm, respectively. The equilibrium binding constant of the ligand with Cu was 1.57 × 10⁴ M, as calculated using the Stern.
一种新的高选择性和高灵敏度的荧光探针用于 Cu， - 丁基-4-（1'-环辛烯-1'，3'，6'-三氮唑）-1,8-萘二甲酰亚胺（），被合成和评估。化合物的结构通过 IR， ¹H-NMR，C-NMR 和 HRMS 进行了表征。荧光探针被 Cu 猝灭，具有 1:1 的结合比，并表现为“关闭”传感器。开发了一种用于检测和估计 EtOH/H₂O 中痕量 Cu 的高效灵敏的分光荧光法。配体的激发和发射最大值分别为 447nm 和 518nm。使用 Stern 计算，配体与 Cu 的平衡结合常数为 1.57×10⁴ M。
