We report the design and synthesis of indanone derivatives 1-4 with RR'N-H⋯OC intramolecular hydrogen bonds, in which ESIPT takes place and its dynamics and thermodynamics correlate with H-bond strength, facilitated by electron-withdrawing R' groups. Compound 4 (R' = COCF) shows mechanically induced ESIPT for the first time, where -CF⋯HN- interaction plays a key role in the non-centrosymmetric crystal packing.
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| http://dx.doi.org/10.1039/d4cp02862g | DOI Listing |
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