Charge transfer in dissociating iodomethane and fluoromethane molecules ionized 
by intense femtosecond X-ray pulses

Boll, Rebecca; Erk, Benjamin; Coffee, Ryan; Trippel, Sebastian; Kierspel, Thomas; Bomme, Cédric; Bozek, John D.; Burkett, Mitchell; Carron, Sebastian; Ferguson, Ken R.; Foucar, Lutz; Küpper, Jochen; Marchenko, Tatiana; Miron, Catalin; Patanen, Minna; Osipov, Timur; Schorb, Sebastian; Simon, Marc; Swiggers, Michelle; Techert, Simone; Ueda, Kiyoshi; Bostedt, Christoph; Rolles, Daniel; Rudenko, Artem

doi:10.1063/1.4944344

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Charge transfer in dissociating iodomethane and fluoromethane molecules ionized by intense femtosecond X-ray pulses

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Foucar, Lutz
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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引用

Boll, R., Erk, B., Coffee, R., Trippel, S., Kierspel, T., Bomme, C., Bozek, J. D., Burkett, M., Carron, S., Ferguson, K. R., Foucar, L., Küpper, J., Marchenko, T., Miron, C., Patanen, M., Osipov, T., Schorb, S., Simon, M., Swiggers, M., Techert, S., Ueda, K., Bostedt, C., Rolles, D., & Rudenko, A. (2016). Charge transfer in dissociating iodomethane and fluoromethane molecules ionized by intense femtosecond X-ray pulses. Structural Dynamics, 3(4):. doi:10.1063/1.4944344.

引用: https://hdl.handle.net/11858/00-001M-0000-002A-1E13-2

要旨

Ultrafast electron transfer in dissociating iodomethane and fluoromethane molecules was studied at the Linac Coherent Light Source free-electron laser using an ultraviolet-pump, X-ray-probe scheme. The results for both molecules are discussed with respect to the nature of their UV excitation and different chemical properties. Signatures of long-distance intramolecular charge transfer are observed for both species, and a quantitative analysis of its distance dependence in iodomethane is carried out for charge states up to I21+. The reconstructed critical distances for electron transfer are in good agreement with a classical over-the-barrier model and with an earlier experiment employing a near-infrared pump pulse.