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. 2017 Jan 25;22(2):200. doi: 10.3390/molecules22020200

Figure 16.

Figure 16

Crown ether anion sensors: anthracenyl derivative bis-triazole 38 reports HSO4− binding with a significant increase in the anthracene emission [114], while N-heterocyclic carbene (NHC) complex 39 responds selectively to I− with quenching of an emission band at 362 nm [116].