# Vibrational Investigation of Nucleobases by Means of Divide and Conquer Semiclassical Dynamics

## TL;DR

This study uses a divide-and-conquer semiclassical method to accurately analyze vibrational features of nucleobases, achieving results within 20 wavenumbers of experimental data, even for complex conformers.

## Contribution

It introduces a computational approach that effectively models vibrational spectra of nucleobases with high accuracy, applicable to complex molecular conformations.

## Key findings

- Accuracy within 20 wavenumbers of experimental data
- Effective for complex conformers like cytosine
- Promising for future studies on nucleotides and base pairs

## Abstract

In this work we report a computational study of the vibrational features of four different nucleobases employing the divide-and-conquer semiclassical initial value representation molecular dynamics method. Calculations are performed on uracil, cytosine, thymine, and adenine. Results show that the overall accuracy with respect to experiments is within 20 wavenumbers, regardless of the dimensionality of the nucleobase. Vibrational estimates are accurate even in the complex case of cytosine, where two relevant conformers are taken into account. These results are promising in the perspective of future studies on more complex systems, such as nucleotides or nucleobase pairs.