Cu2+ and CN−-selective fluorogenic sensors based on pyrene-appended thiacalix[4]arenes
作者： Vandana Bhalla , Manoj Kumar , Rajesh Kumar
DOI: 10.1016/J.TET.2008.06.064
关键词:
摘要: Abstract Two new fluorescent sensors 1 and 2 based on thiacalix[4]arenes bearing pyrene moieties have been synthesized in cone conformation. The binding abilities of these towards different cations such as lithium, sodium, potassium, nickel, cadmium, copper, zinc, lead, silver, mercury anions like fluoride, chloride, bromide, iodide, cyanide, acetate, hydrogen sulfate nitrate examined by UV–vis fluorescence spectroscopies. These receptors show pronounced selectivity for copper cyanide ions. In CH2Cl2/CH3CN (1:1), the presence Cu(II) ion induces formation 1:1 (H/G) complex with receptor 1:2 2. ions form a both receptors.
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