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  Ligand-field symmetry effects in Fe(II) polypyridyl compounds probed by transient X-ray absorption spectroscopy

Cho, H., Strader, M. L., Hong, K., Jamula, L., Gullikson, E. M., Kim, T. K., et al. (2012). Ligand-field symmetry effects in Fe(II) polypyridyl compounds probed by transient X-ray absorption spectroscopy. Faraday Discussions, 157, 463-474. doi:10.1039/C2FD20040F.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-1572-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-E123-5
Genre: Journal Article

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http://dx.doi.org/10.1039/C2FD20040F (Publisher version)
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 Creators:
Cho, Hana1, 2, Author
Strader, Matthew L.1, Author
Hong, Kiryong2, Author
Jamula, Lindsey3, Author
Gullikson, Eric M.4, Author
Kim, Tae Kyu2, Author
de Groot, Frank M. F.5, Author
McCusker, James K.3, Author
Schoenlein, Robert W.1, Author
Huse, Nils6, 7, Author              
Affiliations:
1Ultrafast X-ray Science Laboratory, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, USA , ou_persistent22              
2Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan, Republic of Korea , ou_persistent22              
3Department of Chemistry, Michigan State University, East Lansing, USA , ou_persistent22              
4Center for X-Ray Optics, Lawrence Berkeley National Laboratory, Berkeley, USA , ou_persistent22              
5Department of Chemistry, Utrecht University, Utrecht, Netherlands , ou_persistent22              
6Ultrafast Molecular Dynamics, Research Groups, Max Planck Research Department for Structural Dynamics, Department of Physics, University of Hamburg, External Organizations, ou_2173640              
7Center for Free Electron Laser Science, Hamburg, Germany , ou_persistent22              

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Free keywords: Molecular Reaction Dynamics in Gases; Liquids and Interfaces
 Abstract: Ultrafast excited-state evolution in polypyridyl Fe(II) complexes is of fundamental interest for understanding the origins of the sub-ps spin-state changes that occur upon photoexcitation of this class of compounds as well as for the potential impact such ultrafast dynamics have on incorporation of these compounds in solar energy conversion schemes or switchable optical storage technologies. We have demonstrated that ground-state and, more importantly, ultrafast time-resolved X-ray absorption methods can offer unique insights into the interplay between electronic and geometric structure that underpins the photo-induced dynamics of this class of compounds. The present contribution examines in greater detail how the symmetry of the ligand field surrounding the metal ion can be probed using these X-ray techniques. In particular, we show that steady-state K-edge spectroscopy of the nearest-neighbour nitrogen atoms reveals the characteristic chemical environment of the respective ligands and suggests an interesting target for future charge-transfer femtosecond and attosecond spectroscopy in the X-ray water window.

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Language(s): eng - English
 Dates: 2012-02-282012-05-112012-09-072012-09-23
 Publication Status: Published in print
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1039/C2FD20040F
 Degree: -

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Title: Faraday Discussions
  Abbreviation : Faraday Discuss.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Royal Society of Chemistry
Pages: - Volume / Issue: 157 Sequence Number: - Start / End Page: 463 - 474 Identifier: ISSN: 1359-6640
CoNE: /journals/resource/954925269326