Photophysics and photochemistry of 2-aminobenzoic acid anion in aqueous solution.
Nanosecond laser flash photolysis and absorption and fluorescence spectroscopy were used to study photochemical processes of 2-aminobenzoic acid anion (ABA(-)) in aqueous solutions. Excitation of this species gives rise to the ABA(-) triplet state to the ABA* radical and to the hydrated electron (e(aq)(-)). The last two species result from two-photon processes. In a neutral medium, the main decay channels of ABA(-) triplet state, the ABA* radical, and e(aq)(-) are T-T annihilation, recombination, and capture by the ABA(-) anion, respectively.
Pozdnyakov
Ivan P
IP
Institute of Chemical Kinetics and Combustion, Novosibirsk, Institutskaya 3, 630090 Russia. pozdnyak@kinetics.nsc.ru
Plyusnin
Victor F
VF
Grivin
Vjacheslav P
VP