Fluorescence of matrix isolated guanine and 7-methylguanine.


We have prepared argon and nitrogen matrices containing guanine and 7-methylguanine, and measured their absorption, fluorescence excitation and fluorescence emission spectra. The fluorescence excitation spectrum of guanine shows four well-resolved bands in the range from 170 to 290 nm; excitation at the wavelengths of each of these bands results in a… (More)


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