Anomalous fluorescence and laser emission from 7-alkylamino coumarins in acid solutions
作者： R. Srinivasan , R.J. von Gutfeld , C.S. Angadiyavar , R.W. Dreyfus
DOI: 10.1016/0009-2614(74)85361-3
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摘要: Abstract The fluorescence emission from alcoholic solutions of 7-monoalkylamino-4-methyl coumarins shifts blue to blue-green on the addition acid. Fluorescence and excitation spectra measured at various concentrations show that with increasing concentration, a new peak appears which is source in presence It suggested this species dimer coumarin. analyses amplified streak camera indicate due transient excited species, consistent model based H + dimeric state.
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