The influence of cluster formation on the photodissociation of sulfur dioxide: excitation to the E state.
作者： K. L. Knappenberger , A. W. Castleman
DOI: 10.1063/1.1767091
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摘要: A femtosecond pump-probe technique was employed to study the dissociation dynamics of sulfur dioxide and clusters in real time. Dissociation is initiated by a multiphoton scheme that populates E state. The SO2+ transient fit biexponential decay comprising fast slow component 230 fs 8 ps, respectively. SO+ consists growth 225 as well subsequent 373 fs. response obtained from monomer clearly shows predissociative cleavage S–O bond. Upon cluster formation, sequential increase observed for increasing size, extending 435 (SO2)4+. products SO(SO2)n+, where n=1–3, reflects no indicating formation proceeds through ion Therefore, results caging effect, which impedes process. Further direct evidence our proposed mechanism o...
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