The four fluorescence coumarine derivatives were synthesized by reaction of bromo alkene and 7-hydroxyl coumarin.Their structures were characterized by IR,1HNMR,13CNMR and MS.UV-visible spectra and fluorescence spectr...The four fluorescence coumarine derivatives were synthesized by reaction of bromo alkene and 7-hydroxyl coumarin.Their structures were characterized by IR,1HNMR,13CNMR and MS.UV-visible spectra and fluorescence spectra showed that they have strong fluorescence.It was also showed that these derivatives exhibit excellent stability through the cyclic voltammograms.展开更多
文摘The four fluorescence coumarine derivatives were synthesized by reaction of bromo alkene and 7-hydroxyl coumarin.Their structures were characterized by IR,1HNMR,13CNMR and MS.UV-visible spectra and fluorescence spectra showed that they have strong fluorescence.It was also showed that these derivatives exhibit excellent stability through the cyclic voltammograms.
