Ultrafast Proton Dynamics in Aqueous Amino Acid Solutions Studied by Resonant Inelastic Soft X‑ray Scattering
- Resonant inelastic soft X-ray scattering (RIXS) has been used to study the electronic structure of glycine and lysine in aqueous solution. Upon variation of the pH value of the solution from acidic to basic, major changes of the nitrogen K edge RIXS data are observed for both amino acids, which are associated with the protonation and deprotonation of the amino groups. The experimental results are compared with simulations based on density functional theory, yielding a detailed understanding of the spectral changes, as well as insights into the ultrafast proton dynamics in the intermediate core-excited/ionized state of the RIXS process.
Author: | M. Blum, Michael Odelius, Lothar Weinhardt, Sujitra Pookpanratana, Marcus Bär, Y. Zhang, Oliver Fuchs, W. Yang, Eberhard Umbach, Clemens Heske |
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ISSN: | 1520-5207 |
Title of the source (English): | The Journal of physical chemistry : B |
Document Type: | Scientific journal article peer-reviewed |
Language: | English |
Year of publication: | 2012 |
Volume/Year: | 116 |
Issue number: | 46 |
First Page: | 13757 |
Last Page: | 13764 |
Faculty/Chair: | Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / JP Photovoltaik |
Institution name at the time of publication: | Fakultät für Mathematik, Naturwissenschaften und Informatik (eBTU) / JP Photovoltaik |