Substituted 1,3-Bis(imino)isoindole Diols: A New Class of Proton Transfer Dyes
摘要:
A new class of excited-state intramolecular proton transfer (ESIPT) dyes based on a 1,3-bis(imino)isoindole diol motif has been prepared. These molecules exhibit orange emission (similar to 600 nm) with a large apparent Stokes shift (> 6000 cm(-1)) and quantum efficiencies up to 45%. Selective modification of the substitutents can be used to shift the equilibrium between the enol and keto forms of the molecule in both the ground and excited states.
Substituted 1,3-Bis(imino)isoindole Diols: A New Class of Proton Transfer Dyes
作者:Kenneth Hanson、Niral Patel、Matthew T. Whited、Peter I. Djurovich、Mark E. Thompson
DOI:10.1021/ol103106m
日期:2011.4.1
A new class of excited-state intramolecular proton transfer (ESIPT) dyes based on a 1,3-bis(imino)isoindole diol motif has been prepared. These molecules exhibit orange emission (similar to 600 nm) with a large apparent Stokes shift (> 6000 cm(-1)) and quantum efficiencies up to 45%. Selective modification of the substitutents can be used to shift the equilibrium between the enol and keto forms of the molecule in both the ground and excited states.