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  Femtosecond X-Ray Scattering Study of Ultrafast Photoinduced Structural Dynamics in Solvated [Co(terpy)2]2+

Biasin, E., van Driel, T. B., Kjær, K. S., Dohn, A. O., Christensen, M., Harlang, T., et al. (2016). Femtosecond X-Ray Scattering Study of Ultrafast Photoinduced Structural Dynamics in Solvated [Co(terpy)2]2+. Physical Review Letters, 117(1): 013002. doi:10.1103/PhysRevLett.117.013002.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-7DA6-A Version Permalink: http://hdl.handle.net/21.11116/0000-0004-8FD6-A
Genre: Journal Article

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https://arxiv.org/abs/1607.01511 (Preprint)
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https://doi.org/10.1103/PhysRevLett.117.013002 (Publisher version)
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 Creators:
Biasin, Elisa1, Author
van Driel, Tim Brandt1, Author
Kjær, Kasper S.1, 2, 3, Author
Dohn, Asmus O.4, Author
Christensen, Morten1, Author
Harlang, Tobias2, Author
Chabera, Pavel2, Author
Liu, Yizhu2, 5, Author
Uhlig, Jens2, Author
Pápai, Mátyás4, 6, Author
Németh, Zoltán6, Author
Hartsock, Robert3, Author
Liang, Winnie3, Author
Zhang, Jianxin7, Author
Alonso-Mori, Roberto8, Author
Chollet, Matthieu8, Author
Glownia, James M.8, Author
Nelson, Silke8, Author
Sokaras, Dimosthenis8, Author
Assefa, Tadesse A.9, Author
Britz, Alexander9, 10, Author              Galler, Andreas9, AuthorGawelda, Wojciech9, 11, AuthorBressler, Christian9, AuthorGaffney, Kelly J., AuthorLemke, Henrik T.8, 12, AuthorMøller, Klaus B.4, AuthorNielsen, Martin M.1, AuthorSundström, Villy2, AuthorVankó, György6, AuthorWärnmark, Kenneth5, AuthorCanton, Sophie E.13, 14, AuthorHaldrup, Kristoffer1, Author more..
Affiliations:
1Department of Physics, Technical University of Denmark, Fysikvej 307, DK-2800 Kongens Lyngby, Denmark, ou_persistent22              
2Department of Chemical Physics, Lund University, Box 118, S-22100 Lund, Sweden, ou_persistent22              
3PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA, ou_persistent22              
4Department of Chemistry, Technical University of Denmark, Kemitorvet 207, DK-2800 Kongens Lyngby, Denmark, ou_persistent22              
5Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, Lund SE-22100, Sweden, ou_persistent22              
6Wigner Research Centre for Physics, Hungarian Academy Sciences, H-1525 Budapest, Hungary, ou_persistent22              
7School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China, ou_persistent22              
8LCLS, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA, ou_persistent22              
9European XFEL GmbH, Albert-Einstein-Ring 19, D-22761 Hamburg, Germany, ou_persistent22              
10International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266714              
11Institute of Physics, Jan Kochanowski University, 25-406 Kielce, Poland, ou_persistent22              
12SwissFEL, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland, ou_persistent22              
13IFG Structural Dynamics of (Bio)chemical Systems, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, D-37077 Goettingen, Germany, ou_persistent22              
14FS-SCS, Structural Dynamics with Ultra-short Pulsed X-rays, Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, D-22607 Hamburg, Germany, ou_persistent22              

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Free keywords: Scattering of atoms, molecules, clusters & ions, Femtosecond laser spectroscopy, X-ray scattering Atomic, Molecular & Optical
 Abstract: We study the structural dynamics of photoexcited [Co(terpy)2]2+ in an aqueous solution with ultrafast x-ray diffuse scattering experiments conducted at the Linac Coherent Light Source. Through direct comparisons with density functional theory calculations, our analysis shows that the photoexcitation event leads to elongation of the Co-N bonds, followed by coherent Co-N bond length oscillations arising from the impulsive excitation of a vibrational mode dominated by the symmetrical stretch of all six Co-N bonds. This mode has a period of 0.33 ps and decays on a subpicosecond time scale. We find that the equilibrium bond-elongated structure of the high spin state is established on a single-picosecond time scale and that this state has a lifetime of ∼7  ps.

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Language(s): eng - English
 Dates: 2016-02-052016-06-302016-07-01
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.117.013002
arXiv: 1607.01511
 Degree: -

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 117 (1) Sequence Number: 013002 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1