Figure 4.
Effect of substitution on ESIPT in 2,11-dihydro-1H-cyclopenta[de]indeno[1,2-b]quinoline (CPIQ) from ref. [92]. Reprinted with permission from (Liu, Z.-Y.; Hu, J.-W.; Huang, T.-H.; Chen, K.-Y.; Chou, P.-T. Excited-State Intramolecular Proton Transfer in the Kinetic-Control Regime. Phys. Chem. Chem. Phys. 2020, 22, 22271–22278). Published by the PCCP Owner Societies.