The process of selecting and modifying a known gelator scaffold to develop a new nitrite-based sensor is described. Five new azo-sulfonate gelators were discovered and characterized. The most promising scaffold exhibits a stable diazonium intermediate, proceeds in a high yield, and gels nitrite-spiked tap, river, and pond water.
D. M. Zurcher, Y. J. Adhia, J. D. Romero and A. J. McNeil, Chem. Commun., 2014, 50, 7813 DOI: 10.1039/C4CC02504K
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