Different types of fluorescent probes for Hg2+ based on the 5-thiophen-2-yl-benzothiazole derivatives (TBT, CTBT, DTBT and NTBT) were realized by changing the subsituents, including the fluorescence quenching probe, the fluorescence enhancement probe and the ratiometric fluorescent probe.

A novel iridium(iii) complex Ir(dpp)2(dta) with diethyldithiocarbamate (S^S) as the ancillary ligand was synthesized and characterized. The polymer organic light-emitting device based on Ir(dpp)2(dta) has been fabricated.

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