Chemistry in nanoconfined water: from H+/OH- formation and diffusion to prebiotic peptide synthesis
CIC nanoGUNE Seminars
- Speaker
-
Daniel Muñoz-Santiburcio, Theory Group
- When
-
2017/10/02
13:00 - Place
- nanoGUNE seminar room, Tolosa Hiribidea 76, Donostia - San Sebastian
- Add to calendar
- iCal
Nanoconfined liquids, and in particular water, can present very different
properties with respect to the bulk phase. In this talk, I will present recent
results obtained by ab initio simulations of nanoconfined water within mineral
sheets, studying processes such as the diffusion mechanism of proton and
hydroxide ions [1,2], water self-dissociation [3] and extensive reaction
networks leading to prebiotic peptide synthesis [4]. It will be shown that
chemistry in nanoconfined water is conditioned by a subtle interplay between
the sterical factors arising from the confinement in itself and the different
dielectric behavior of nanoconfined water compared to bulk water. This
interplay leads to dramatic changes in the reaction mechanisms and energetics
when changing from the bulk regime to the nanoconfined regime.
[1] D. Muñoz-Santiburcio, C. Wittekindt & D. Marx, Nat. Commun., 4, 2349
(2013)
[2] D. Muñoz-Santiburcio & D. Marx, Nat. Commun., 7, 12625 (2016).
[3] D. Muñoz-Santiburcio & D. Marx, Chem. Sci., 8, 3444–3452 (2017).
[4] D. Muñoz-Santiburcio & D. Marx, Phys. Rev. Lett., 119, 056002 (2017).
_**Daniel Muñoz-Santiburcio comes from **_ ** _Ruhr-University Bochum_** _
**and is joining nanoGUNE's Theory Group as Postdoctoral researcher**_