Nonadiabatic dynamics studied by liquid-jet time-resolved photoelectron spectroscopy

ZN Heim, DM Neumark - Accounts of Chemical Research, 2022‏ - ACS Publications
Conspectus The development of the liquid microjet technique by Faubel and co-workers has
enabled the investigation of high vapor pressure liquids and solutions utilizing high-vacuum …

The photophysics of nucleic acids: Consequences for the emergence of life

CL Kufner, DB Bucher, DD Sasselov - ChemSystemsChem, 2023‏ - Wiley Online Library
Absorption of ultraviolet (UV) radiation can trigger a variety of photophysical and
photochemical reactions in nucleic acids. In the prebiotic era, on the surface of the early …

Excited-state dynamics in the RNA nucleotide uridine 5′-monophosphate investigated using femtosecond broadband transient absorption spectroscopy

MM Brister, CE Crespo-Hernández - The journal of physical …, 2019‏ - ACS Publications
Damage to RNA from ultraviolet radiation induces chemical modifications to the
nucleobases. Unraveling the excited states involved in these reactions is essential; …

Characterizing conical intersections in DNA/RNA Nucleobases with Multiconfigurational wave functions of varying active space size

J Cuéllar-Zuquin, AJ Pepino… - Journal of Chemical …, 2023‏ - ACS Publications
We characterize the photochemically relevant conical intersections between the lowest-lying
accessible electronic excited states of the different DNA/RNA nucleobases using Cholesky …

Detection of the thietane precursor in the UVA formation of the DNA 6-4 photoadduct

LA Ortiz-Rodríguez, C Reichardt, SJ Hoehn… - Nature …, 2020‏ - nature.com
Notwithstanding the central biological role of the (6-4) photoadduct in the induction of skin
cancer by sunlight, crucial mechanistic details about its formation have evaded …

Solvent‐Dependent Stabilization of a Charge Transfer State is the Key to Ultrafast Triplet State Formation in an Epigenetic DNA Nucleoside

X Wang, L Martínez‐Fernández… - … A European Journal, 2021‏ - Wiley Online Library
Deoxy‐5‐formylcytidine (5fdCyd), a naturally occurring nucleoside found in mammalian
DNA and mitochondrial RNA, exhibits important epigenetic functionality in biological …

Solvent effects in the ultraviolet and X-ray absorption spectra of pyridazine in aqueous solution

S Tsuru, B Sharma, M Nagasaka… - The Journal of Physical …, 2021‏ - ACS Publications
Electrostatic interaction of the solvent with the solute and fluctuations of the solvent
configurations may make excitation energies of the solute different from those in the gas …

Relaxation dynamics of hydrated thymine, thymidine, and thymidine monophosphate probed by liquid jet time-resolved photoelectron spectroscopy

BA Erickson, ZN Heim, E Pieri, E Liu… - The Journal of …, 2019‏ - ACS Publications
The relaxation dynamics of thymine and its derivatives thymidine and thymidine
monophosphate are studied using time-resolved photoelectron spectroscopy applied to a …

Excited-state absorption of uracil in the gas phase: Map** the main decay paths by different electronic structure methods

DA Fedotov, AC Paul, P Posocco… - Journal of Chemical …, 2021‏ - ACS Publications
We present a computational study of the one-photon and excited-state absorption (ESA)
from the two lowest energy excited states of uracil in the gas phase: an nπ* dark state (1n) …

On the origin of the photostability of DNA and RNA monomers: Excited state relaxation mechanism of the pyrimidine chromophore

EM Arpa, MM Brister, SJ Hoehn… - The Journal of …, 2020‏ - ACS Publications
Today's genetic composition is the result of continual refinement processes on primordial
heterocycles present in prebiotic Earth and at least partially regulated by ultraviolet …