Ontology highlight
ABSTRACT:
SUBMITTER: Sofronov OO
PROVIDER: S-EPMC6661761 | biostudies-literature | 2019 Jul
REPOSITORIES: biostudies-literature
Sofronov Oleksandr O OO Bakker Huib J HJ
The journal of physical chemistry. B 20190712 29
We study the ultrafast relaxation dynamics of hydrated proton clusters in acetonitrile using femtosecond mid-infrared pump-probe spectroscopy. We observe a strong dependence of transient absorption dynamics on the frequency of excitation. When we excite the OH vibrations with frequencies ≤3100 cm<sup>-1</sup>, we observe an ultrafast energy relaxation that leads to the heating of the local environment of the proton. This response is assigned to the OH vibrations of the water molecules in the cor ...[more]