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  Imaging charge transfer in iodomethane upon X-ray photoabsorption.

Erk, B., Boll, R., Trippel, S., Anielski, D., Foucar, L., Rudek, B., et al. (2014). Imaging charge transfer in iodomethane upon X-ray photoabsorption. Science, 345(6194), 288-291. doi:10.1126/science.1253607.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-01CB-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-01CE-B
Genre: Journal Article

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2364644.pdf (Publisher version), 868KB
 
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 Creators:
Erk, B., Author
Boll, R.1, Author              
Trippel, S., Author
Anielski, D., Author
Foucar, L., Author
Rudek, B., Author
Epp, S., Author
Coffee, R., Author
Carron, S., Author
Schorb, S., Author
Ferguson, K. R., Author
Swiggers, M., Author
Bozek, J. D., Author
Simon, M., Author
Marchenko, T., Author
Küpper, J., Author
Schlichting, I., Author
Ullrich, J., Author
Bostedt, C., Author
Rolles, D., Author
Rudenko, A., Author more..
Affiliations:
1Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for Biophysical Chemistry, Max Planck Society, ou_578564              

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 Abstract: Studies of charge transfer are often hampered by difficulties in determining the charge localization at a given time. Here, we used ultrashort x-ray free-electron laser pulses to image charge rearrangement dynamics within gas-phase iodomethane molecules during dissociation induced by a synchronized near-infrared (NIR) laser pulse. Inner-shell photoionization creates positive charge, which is initially localized on the iodine atom. We map the electron transfer between the methyl and iodine fragments as a function of their interatomic separation set by the NIR–x-ray delay. We observe signatures of electron transfer for distances up to 20 angstroms and show that a realistic estimate of its effective spatial range can be obtained from a classical over-the-barrier model. The presented technique is applicable for spatiotemporal imaging of charge transfer dynamics in a wide range of molecular systems.

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Language(s): eng - English
 Dates: 2014-07-18
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1126/science.1253607
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Title: Science
Source Genre: Journal
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Pages: - Volume / Issue: 345 (6194) Sequence Number: - Start / End Page: 288 - 291 Identifier: -