Imperial College London
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Professor LESZEK Frasinski

Faculty of Natural Sciences, Department of Physics

Professor in Atomic and Molecular Physics
 
 
 
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Contact

 

l.j.frasinski CV

 
 
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Assistant

 

Ms Judith Baylis +44 (0)20 7594 7713

 
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Location

 

206Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Liekhus-Schmaltz:2015:10.1038/ncomms9199,
author = {Liekhus-Schmaltz, CE and Tenney, I and Osipov, T and Sanchez-Gonzalez, A and Berrah, N and Boll, R and Bomme, C and Bostedt, C and Bozek, JD and Carron, S and Coffee, R and Devin, J and Erk, B and Ferguson, KR and Field, RW and Foucar, L and Frasinski, LJ and Glownia, JM and Guehr, M and Kamalov, A and Krzywinski, J and Li, H and Marangos, JP and Martinez, TJ and McFarland, BK and Miyabe, S and Murphy, B and Natan, A and Rolles, D and Rudenko, A and Siano, M and Simpson, ER and Spector, L and Swiggers, M and Walke, D and Wang, S and Weber, T and Bucksbaum, PH and Petrovic, VS},
doi = {10.1038/ncomms9199},
journal = {Nature Communications},
title = {Ultrafast isomerization initiated by X-ray core ionization},
url = {http://dx.doi.org/10.1038/ncomms9199},
volume = {6},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Rapid proton migration is a key process in hydrocarbon photochemistry. Charge migration and subsequent proton motion can mitigate radiation damage when heavier atoms absorb X-rays. If rapid enough, this can improve the fidelity of diffract-before-destroy measurements of biomolecular structure at X-ray-free electron lasers. Here we study X-ray-initiated isomerization of acetylene, a model for proton dynamics in hydrocarbons. Our time-resolved measurements capture the transient motion of protons following X-ray ionization of carbon K-shell electrons. We Coulomb-explode the molecule with a second precisely delayed X-ray pulse and then record all the fragment momenta. These snapshots at different delays are combined into a ‘molecular movie’ of the evolving molecule, which shows substantial proton redistribution within the first 12 fs. We conclude that significant proton motion occurs on a timescale comparable to the Auger relaxation that refills the K-shell vacancy.
AU  - Liekhus-Schmaltz,CE
AU  - Tenney,I
AU  - Osipov,T
AU  - Sanchez-Gonzalez,A
AU  - Berrah,N
AU  - Boll,R
AU  - Bomme,C
AU  - Bostedt,C
AU  - Bozek,JD
AU  - Carron,S
AU  - Coffee,R
AU  - Devin,J
AU  - Erk,B
AU  - Ferguson,KR
AU  - Field,RW
AU  - Foucar,L
AU  - Frasinski,LJ
AU  - Glownia,JM
AU  - Guehr,M
AU  - Kamalov,A
AU  - Krzywinski,J
AU  - Li,H
AU  - Marangos,JP
AU  - Martinez,TJ
AU  - McFarland,BK
AU  - Miyabe,S
AU  - Murphy,B
AU  - Natan,A
AU  - Rolles,D
AU  - Rudenko,A
AU  - Siano,M
AU  - Simpson,ER
AU  - Spector,L
AU  - Swiggers,M
AU  - Walke,D
AU  - Wang,S
AU  - Weber,T
AU  - Bucksbaum,PH
AU  - Petrovic,VS
DO  - 10.1038/ncomms9199
PY  - 2015///
SN  - 2041-1723
TI  - Ultrafast isomerization initiated by X-ray core ionization
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/ncomms9199
UR  - http://hdl.handle.net/10044/1/28062
VL  - 6
ER  -
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