Publications by Pablo Lopez Tarifa

Shedding Light on the Basis Set Dependence of the Minnesota Functionals: Differences Between Plane Waves, Slater Functions, and Gaussians

Ursula Röthlisberger, Pablo Lopez Tarifa, Martin Peter Bircher

The Minnesota family of exchange-correlation (xc) functionals are among the most popular, accurate, and abundantly used functionals available to date. However, their use in plane-wave based first-principles MD has been limited by their sparse availability. ...

2019

Roles of Hydration for Inducing Decomposition of 2-Deoxy-D-ribose by Ionization of Oxygen K-Shell Electrons

Pablo Lopez Tarifa

2018

Charge migration and charge transfer in molecular systems

Jacques-Edouard Moser, Majed Chergui, Joël Teuscher, Ursula Röthlisberger, Christopher Alexander Arrell, Andrea Cannizzo, Pablo Lopez Tarifa, Natalie Renuka Banerji, Elisa Liberatore

The transfer of charge at the molecular level plays a fundamental role in many areas of chemistry, physics, biology and materials science. Today, more than 60 years after the seminal work of R. A. Marcus, charge transfer is still a very active field of res ...

2017

Ultrafast Relaxation Dynamics of the Ethylene Cation C

Ursula Röthlisberger, Lamia Kasmi, Pablo Lopez Tarifa, Elisa Liberatore

We present a combined experimental and computational study of the relaxation dynamics of the ethylene cation. In the experiment, we apply an extreme-ultraviolet-pump/infrared-probe scheme that permits us to resolve time scales on the order of 10 fs. The ph ...

2016

Modeling proton-induced damage on 2-deoxy-D-ribose. Conformational analysis

Pablo Lopez Tarifa

Modeling proton-induced damage in biological systems, in particular in DNA building blocks, is of major concern in studies on cancer proton therapy. This is indeed an extremely complex process and analysis of the mechanism at the molecular level is of cruc ...

Springer2014

Ultrafast nonadiabatic fragmentation dynamics of biomolecules

Ivano Tavernelli, Pablo Lopez Tarifa, Yang Wang

Fragmentation of doubly charged biomolecules, uracil and amino acids, has been investigated using different ab inito Molecular Dynamics Methods. Time-Dependent Density Functional Theory Molecular Dynamics give a description of the non-adiabatic effects, th ...

Iop Publishing Ltd2014

Time-dependent density functional theory molecular dynamics simulation of doubly charged uracil in gas phase

Ursula Röthlisberger, Ivano Tavernelli, Pablo Lopez Tarifa

We use time-dependent density functional theory and Born-Oppenheimer molecular dynamics methods to investigate the fragmentation of doubly ionized uracil in gas phase. Different initial electronic excited states of the dication are obtained by removing ele ...

2014

Ultrafast Damage Following Radiation-Induced Oxidation of Uracil in Aqueous Solution

Ivano Tavernelli, Pablo Lopez Tarifa

Wiley-VCH Verlag GmbH2013

The tautomeric structures of 3(5),3 '(5 ')-azopyrazole [(E)-1,2-di(1H-pyrazol-3(5)-yl)diazene)]: The combined use of NMR and electronic spectroscopies with DFT calculations

Pablo Lopez Tarifa

An azo derivative of 1H-pyrazole has been chosen to study the information obtained from different techniques for determining the structure of a non-crystalline compound in the solid-state and in solution. Syn-anti isomerism of the azo group, prototropic ta ...

2012

Ultrafast Nonadiabatic Fragmentation Dynamics of Doubly Charged Uracil in a Gas Phase

Ivano Tavernelli, Pablo Lopez Tarifa

A combination of time-dependent density functional theory and Born-Oppenheimer molecular dynamics methods is used to investigate fragmentation of doubly charged gas-phase uracil in collisions with 100 keV protons. The results are in good agreement with ion ...

2011

Ionization and fragmentation of water clusters by fast highly charged ions

Ivano Tavernelli, Pablo Lopez Tarifa

We study the dissociative ionization of water clusters by impact of 12 MeV/u Ni25+ ions. Cold target recoil ion momentum spectroscopy (COLTRIMS) is used to obtain information about stability, energetics and charge mobility of the ionized water clusters. An ...

IOP Publishing2009