Photodissociation of bromobenzene in solution |
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| Affiliation: | 1. Department of Chemical Physics, Lund University, Box 124, 221 00 Lund, Sweden;2. Department of Physical Chemistry, Uppsala University, Box 532, 751 21 Uppsala, Sweden;3. Institut für Physikalische und Theoretische Chemie, Freie Universität, Takustr. 3, 141 95 Berlin, Germany;1. Institute of Atomic and Molecular Sciences, Academia Sinica, Taiwan;2. Department of Chemistry, National Taiwan University, Taiwan;1. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET y Departamento de Farmacia, Facultad de Ciencias Químicas-UNC, Córdoba, Argentina;2. Instituto de Física Enrique Gaviola (IFEG), CONICET y Facultad de Matemática, Astronomía y Física-UNC, Córdoba, Argentina;3. Centro de Ciências, Departamento de Física, Universidade Federal do Ceará, Fortaleza, Brazil;1. Laboratory of Biochemistry, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan;2. Laboratory of Biophysical Chemistry, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan |
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| Abstract: | ![]()
The photodissociation of bromobenzene in solution was investigated with ultrafast transient absorption spectroscopy following excitation at 266 nm. Ab initio calculations of lower singlet and triplet states were performed in order to guide the interpretations. The main feature of the kinetics measured between 300 and 930 nm in acetonitrile is a 9±1 ps decay, which we mainly assign to predissociation. Similar decays were observed in hexane, dichloromethane and tetrachloromethane at 400 and 800 nm. Other features in acetonitrile, such as complicated short-time dynamics between 420 and 620 nm and a long-lived component, might indicate the involvement of lower triplet states. |
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