New two-photon absorption organic chromophores containing imino and hydroxyl groups: synthesis, ESIPT and chemosensors
作者:Fang Gao、Xinchao Wang、Hongru Li、Xiaojuan Ye
DOI:10.1016/j.tet.2013.04.121
日期:2013.7
conjugated chromophores containingimino and hydroxylgroups are presented. Excited state intramolecular proton transfer (ESIPT) of these chromophores under one- and two-photon irradiation was surveyed. One-photon absorption spectra show the presence of internal hydrogen bond in the organic dyes containing ortho-hydroxyl group, while the corresponding dyes carrying para-hydroxyl group do not exhibit intramolecular