New two-photon absorption benzotriazole–coumarin dyads: the evidence of internal proton transfer in the excited state
作者:Yulong Gong、Yao Lu、Zhenqiang Wang、Shengtao Zhang、Ziping Luo、Hongru Li、Fang Gao
DOI:10.1016/j.tetlet.2014.11.074
日期:2015.1
New near-infrared two-photon absorption it-extended benzotriazole-coumarin dyads as target molecules were synthesized. The corresponding coumarin derivatives and esterified dyads were also prepared as the references. The experimental evidence of internal proton transfer in the excited state of the benzotriazole-based chromophores under one and near-infrared two-photon irradiation are firstly presented in this Letter. (C) 2014 Elsevier Ltd. All rights reserved.