A new class of N–H proton transfer molecules: wide tautomer emission tuning from 590 nm to 770 nm <i>via</i> a facile, single site amino derivatization in 10-aminobenzo[<i>h</i>]quinoline

Abstract

Facile derivation of 10-aminobenzo[h]quinoline via replacing one of the N-H hydrogen atoms by various substituents generates a new series of excited-state intramolecular N-H proton-transfer molecules, for which the proton-transfer emission can be widely tuned from 590 nm to 770 nm simply by harnessing the electron-donating/withdrawing strength of the substituents.