Tuning uracil derivatives for the AIE-based detection of pyrene at a nano-molar level: single-crystal X-ray structure and DFT support
NEW JOURNAL OF CHEMISTRY(2020)
摘要
Single crystal X-ray structurally characterized azo-uracil derivative (L) is explored for the selective detection of pyreneviaaggregation-induced emission (AIE) with 99-fold fluorescence enhancement. In the presence of pyrene, non-fluorescent L emits green light and allows pyrene detection to as low as 3.6 x 10(-9)M. Three model probes (L1, L2 and L3) were employed to support the proposed sensing mechanism. Further, silica-immobilized L efficiently removes pyrene from its reservoir.
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