# Spatial separation of pyrrole and pyrrole-water clusters

## TL;DR

This paper demonstrates a method to spatially separate pyrrole and pyrrole-water clusters from other species in a supersonic beam, achieving high purity and low rotational temperatures supported by experimental and simulation data.

## Contribution

The study introduces a technique for effectively separating pyrrole-water clusters with high purity from a molecular beam, supported by experimental validation and simulations.

## Key findings

- Achieved ~100% purity of pyrrole-water clusters
- Obtained rotational temperatures of 0.8 K and 0.4 K for different beam components
- Validated experimental results with quantitative simulations

## Abstract

We demonstrate the spatial separation of pyrrole and pyrrole(H$_2$O) clusters from the other atomic and molecular species in a supersonically-expanded beam of pyrrole and traces of water seeded in high-pressure helium gas. The experimental results are quantitatively supported by simulations. The obtained pyrrole(H$_2$O) cluster beam has a purity of ~100 %. The extracted rotational temperature of pyrrole and pyrrole(H$_2$O) from the original supersonic expansion is $T_\text{rot}=0.8\pm0.2$ K, whereas the temperature of the deflected, pure-pyrrole(H$_2$O) part of the molecular beam corresponds to $T_\text{rot}\approx0.4$ K.