#### Neural Network IP for Helium and Protonated Water (H<sub>3</sub>O<sup>+</sup>-He)

This is an updated version of the originally developed NNP to use CCSD(T\*)-F12a/AVTZ-cp
calculations.

Original publication of the methodology: "High-dimensional neural network potentials for solvation:
The case of protonated water clusters in helium" Reference:
[J. Chem. Phys. 148 (10), 102310 (2018)](https://doi.org/10.1063/1.4996819). Preprint available on
[arxiv](https://arxiv.org/abs/2103.13123).

Publication of the updated version: "Properties of hydrogen bonding at ultra-low temperatures in
superfluid quantum solvents.", C. Schran, PhD thesis, Ruhr-Universitaet Bochum, 2019.
(https://doi.org/10.13154/294-9852)
