A new class of 2,6-bis(2-anilinoethynyl)pyridine-based bisureas forms 1 : 1 complexes with halides; protonation enhances binding by over one order of magnitude, alters the binding selectivity, and provides a colorimetric indication of anion binding.
一类新的基于2,6-双(2-
苯胺基
乙炔基)
吡啶的Bisureas与卤化物形成1:1络合物。质子化将结合提高一个数量级,改变结合选择性,并提供阴离子结合的比色指示。