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Picosecond and femtosecond X-ray absorption spectroscopy of molecular systems
- Source :
- Acta crystallographica. Section A, Foundations of crystallography. 66(Pt 2)
- Publication Year :
- 2009
-
Abstract
- The need to visualize molecular structure in the course of a chemical reaction, a phase transformation or a biological function has been a dream of scientists for decades. The development of time-resolved X-ray and electron-based methods is making this true. X-ray absorption spectroscopy is ideal for the study of structural dynamics in liquids, because it can be implemented in amorphous media. Furthermore, it is chemically selective. Using X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) in laser pump/X-ray probe experiments allows the retrieval of the local geometric structure of the system under study, but also the underlying photoinduced electronic structure changes that drive the structural dynamics. Recent developments in picosecond and femtosecond X-ray absorption spectroscopy applied to molecular systems in solution are reviewed: examples on ultrafast photoinduced processes such as intramolecular electron transfer, low-to-high spin change, and bond formation are presented.
- Subjects :
- Ultrafast Electron-Diffraction
X-ray absorption spectroscopy
Photoinduced Phase-Transitions
Absorption spectroscopy
Extended X-ray absorption fine structure
Chemistry
Ultrafast electron diffraction
Analytical chemistry
Multiple-Scattering Calculations
Excited-State
Near-Edge Structure
XANES
Structural Biology
Chemical physics
Picosecond
Photoactive Yellow Protein
Femtosecond
Spin-Crossover Complexes
Synchrotron-Radiation
Of-The-Art
Absorption (electromagnetic radiation)
Atomic-Scale Dynamics
Subjects
Details
- ISSN :
- 16005724
- Volume :
- 66
- Issue :
- Pt 2
- Database :
- OpenAIRE
- Journal :
- Acta crystallographica. Section A, Foundations of crystallography
- Accession number :
- edsair.doi.dedup.....0f5fef6539e80c59c235161d7562966b