| Popis: |
Isotopically selected photofragmentation of thermal ClO radicals was studied in the continuous and structured region of the A 2 Π ← X 2 Π transition in the wavelength range 237 λ 2 P 3/2, 1/2 ) and O( 1 D) atoms with a quantum yield of unity. The translational energy of O( 1 D) was determined and quantified as a function of the wavelength of the incident radiation. Some experiments on the kinetic energy deposited in Cl( 2 P 3/2, 1/2 ) are also reported. From the decrease of the O( 1 D) REMPI signal intensity approaching the transition from continuous to structured absorption, the cut-off excitation wavelength for O( 1 D) in thermal ClO radicals was evaluated to be 263.4±0.2 nm. In the structured region of the spectrum oxygen atoms are formed in the triplet ground state. |
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