# Molecular electronic structure in one-dimensional Coulomb systems

## TL;DR

This paper explores the stability and bonding of various 1D molecules and polymers, introducing the exclusion potential as a tool to predict molecular stability in one-dimensional Coulomb systems.

## Contribution

It provides a comprehensive analysis of stable 1D compounds and introduces the exclusion potential to understand bonding and predict stability.

## Key findings

- Identification of stable 1D molecules and polymers
- Introduction of the exclusion potential for bonding analysis
- Development of rules to predict molecular stability

## Abstract

Following two recent papers [Phys. Chem. Chem. Phys. 2015, \textbf{17}, 3196; Mol. Phys. 2015, \textbf{113}, 1843], we perform a larger-scale study of chemical structure in one dimension (1D). We identify a wide, and occasionally surprising, variety of stable 1D compounds (from diatomics to tetra-atomics) as well as a small collection of stable polymeric structures. We define the exclusion potential, a 1D analogue of the electrostatic potential, and show that it can be used to rationalise the nature of bonding within molecules. This allows us to construct a small set of simple rules which can predict whether a putative 1D molecule should be stable.