Hydrogen bonding heavily influences conformations, rate of reactions, and chemical equilibria. The development of a method to monitor hydrogen bonding interactions independent of polarity is challenging as both are linked. We have developed two solvatochromic dyes that detect hydrogen-bond-donating solvents. The unique solvatochromism of the triazine architecture has allowed the development of probes that monitor hydrogen-bond-donating species including water. Scheme 1 Synthetic steps to (a)

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... AT and (b) AMADAT. † Electronic supplementary information (ESI) available: Quantum yield of MADAT in DCM and methanol. Emission of MADAT in phenol and trifluoroethanol. AMADAT emission in various solvents. Linear correlation between concentration of thymine 1 and fluorescence intensity. Addition of N-Me thymine 2 to MADAT in DCM. Linear relation between water concentration and fluorescence intensity. Concentration versus emission plots for MADAT and AMADAT. See