4.1 Article

Local structure of photoexcited bimetallic complexes refined by quantitative XANES analysis

Journal

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.elspec.2011.01.010

Keywords

X-ray transient absorption; XANES; Ultrafast X-ray spectroscopy

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Funding

  1. ERC [226136]
  2. Swedish Research Council
  3. Division of Chemical Sciences, Office of Basic Energy Sciences, The U.S. Department of Energy [DE-AC02-06CH11357]
  4. U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
  5. European Research Council (ERC) [226136] Funding Source: European Research Council (ERC)

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Photoexcited states of a pyrazolate bridged PtPt dimer and a supramolecular RuCo complex with bipyridine-type ligands were studied using the pump-and-probe X-ray absorption spectroscopy method. The local structure refinement based on the fitting of XANES difference spectra has been performed. The theoretical analysis included the full multiple scattering calculations and the multidimensional interpolation of spectra as a function of structural parameters. The influence of possible correlations between the fraction of molecules in the photoexcited state and structural parameters is discussed. (C) 2011 Elsevier B.V. All rights reserved.

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