Ultrafast photo-induced processes in complex environments: The role of accuracy in excited-state energy potentials and initial conditions

A Petrone, F Perrella, F Coppola, L Crisci… - Chemical Physics …, 2022 - pubs.aip.org
Light induces non-equilibrium time evolving molecular phenomena. The computational
modeling of photo-induced processes in large systems, embedded in complex environments …

Time-resolved vibrational analysis of excited state ab initio molecular dynamics to understand photorelaxation: The case of the pyranine photoacid in aqueous …

MG Chiariello, G Donati, N Rega - Journal of Chemical Theory …, 2020 - ACS Publications
We present a novel time-resolved vibrational analysis for studying photoinduced nuclear
relaxation. Generalized modes velocities are defined from ab initio molecular dynamics and …

Assessment of exchange-correlation functionals in reproducing the structure and optical gap of organic-protected gold nanoclusters

F Muniz-Miranda, MC Menziani… - The Journal of Physical …, 2014 - ACS Publications
Extensive benchmarks of exchange-correlation functionals on real X-ray resolved
nanoclusters have been carried out and reported here for the first time. The systems …

Unveiling anharmonic coupling by means of excited state ab initio dynamics: Application to diarylethene photoreactivity

MG Chiariello, U Raucci, F Coppola… - Physical Chemistry …, 2019 - pubs.rsc.org
In this work, excited state ab initio molecular dynamics together with a time resolved
vibrational analysis is employed to shed light on the vibrational photoinduced dynamics of a …

Homogeneous dephasing in photosynthetic bacterial reaction centers: Time correlation function approach

M Toutounji - ChemPhysChem, 2024 - Wiley Online Library
A new tractable linear electronic transition dipole moment time correlation function
(ETDMTCF) that accurately accounts for electronic dephasing, asymmetry, and width of 1 …

Influence of Silver Doping on the Photoluminescence of Protected AgnAu25–n Nanoclusters: A Time-Dependent Density Functional Theory Investigation

F Muniz-Miranda, MC Menziani… - The Journal of Physical …, 2015 - ACS Publications
The effect of silver doping on the electronic properties and photoluminescence of a class of
structurally similar Ag n Au25–n 2+ nanoclusters (0≤ n≤ 13) has been investigated here by …

Blueshift of the C N stretching vibration of acetonitrile in solution: computational and experimental study

F Muniz‐Miranda, A Pedone… - Journal of …, 2024 - Wiley Online Library
Acetonitrile, a polar molecule that cannot form hydrogen bonds on its own, interacts with
solvent molecules mainly through the lone pair of its nitrogen atom and the π electrons of its …

Water-mediated excited state proton transfer of pyranine–acetate in aqueous solution: Vibrational fingerprints from ab initio molecular dynamics

MG Chiariello, U Raucci, G Donati… - The Journal of Physical …, 2021 - ACS Publications
In this work, we simulate the excited state proton transfer (ESPT) reaction involving the
pyranine photoacid and an acetate molecule as proton acceptor, connected by a bridge …

Vibrational spectra of phosphate ions in aqueous solution probed by first-principles molecular dynamics

J VandeVondele, P Tröster, P Tavan… - The Journal of …, 2012 - ACS Publications
We have carried out “first-principles” Born–Oppenheimer molecular dynamics (BOMD)
simulations of the phosphate ions H2PO4–and HPO42–in liquid water and have calculated …

DFT and TD-DFT Study of the chemical effect in the SERS spectra of piperidine adsorbed on silver colloidal nanoparticles

F Muniz-Miranda, A Pedone, MC Menziani… - Nanomaterials, 2022 - mdpi.com
The surface-enhanced Raman scattering (SERS) spectra of piperidine adsorbed on
silver/chloride colloids were studied by a combined density functional theory (DFT)/time …