Kuimova, Marina K; Gill, Peter; Lin, Ching-Yeh; Matousek, Pavel; Towrie, Michael; Sun, Xue Zhong; George, Michael W; Parker, Anthony W
Two photon ionisation of 2-aminopurine (2AP) has been monitored following 267 nm irradiation in neutral and acidic aqueous solutions using picosecond time-resolved infrared spectroscopy (ps-TRIR). The transient infrared spectra obtained in neutral and acidic conditions show significant differences that are consistent with the formation of different species, namely the 2AP radical cation, 2AP+•, in acidic conditions and the uncharged radical, 2AP•(-H+), in neutral conditions. The ps-TRIR data...[Show more]
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