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Experimental and th...
Experimental and theoretical study of the photodissociation of bromo-3-fluorobenzene
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- Karlsson, Daniel (författare)
- Uppsala universitet,Institutionen för fotokemi och molekylärvetenskap
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- Borg, Anders (författare)
- Uppsala universitet,Kvantkemi
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- Lunell, Sten (författare)
- Uppsala universitet,Kvantkemi
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- Davidsson, Jan (författare)
- Uppsala universitet,Institutionen för fotokemi och molekylärvetenskap
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- Karlsson, Hans O. (författare)
- Uppsala universitet,Kvantkemi
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(creator_code:org_t)
- AIP Publishing, 2008
- 2008
- Engelska.
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Ingår i: Journal of Chemical Physics. - : AIP Publishing. - 0021-9606 .- 1089-7690. ; 128:3, s. 034307-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The UV photodissociation of bromo-3-fluorobenzene under collisionless conditions has been studied as a function of the excitation wavelength between 255 and 265 nm. The experiments were performed using ultrafast pump-probe laser spectroscopy. To aid in the interpretation of the results, it was necessary to extend the theoretical framework substantially compared to previous studies, to also include quantum dynamical simulations employing a two-dimensional nuclear Hamiltonian. The nonadiabatic potential energy surfaces (PES) were parameterized against high-level MS-CASTP2 quantum chemical calculations, using both the C–Br distance and the out-of-plane bending of the bromine as nuclear parameters. We show that the wavelength dependence of the photodissociation via the S0→1ππ*→1πσ* channel, accessible with a ∼ 260 nm pulse, is captured in this model. We thereby present the first correlation between experiments and theory within the quantitative regime.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Nyckelord
- Chemistry
- Kemi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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