Design and synthesis of a novel tripod rhodamine derivative for trivalent metal ions detection
作者： Haoping Wang , Tiantian Kang , Xiaoju Wang , Liheng Feng
DOI: 10.1016/J.SNB.2018.03.003
关键词:
摘要: Abstract A tripod rhodamine derivative (L) with flexible chains was synthesized through linking tris(2-aminoethyl)amine appended and two thiophene groups. Based on the synergetic action of acidic medium provided by trivalent metal ions stability complex came from probe L, displayed higher selectivity sensitivity in CH3OH/H2O (1/3) solution. The formation these complexes caused a new absorption peak appearance at 555 nm along color changes Meanwhile, drive fluorescence behaviors L were observed dramatical enhancement 585 nm, respectively. Interestingly, introducing EDTA to L/Fe(III) complex, intensity further enhanced. high throughput analysis strategy, designed as logic gate for detecting ions. Typically, combination ratio Fe(III) 1/1 (mole), which obtained Job-plot experiment confirmed DFT calculations. Moreover, “turn-on” switch applied detect actual sample.
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