# Perfluoropropionic Acid (CF3CF2C(O)OH): Three Conformations and Dimer Formation

## TL;DR

This paper explores the structural properties of perfluoropropionic acid, revealing three monomeric conformations and a dimeric structure.

## Contribution

The study identifies three distinct conformations and a dimeric structure in perfluoropropionic acid through experimental and computational methods.

## Key findings

- Perfluoropropionic acid exhibits three distinct monomeric conformations.
- A dimeric structure was confirmed through low-temperature X-ray diffraction.
- FTIR analysis supported the structural findings in an Ar-cryogenic matrix.

## Abstract

Perfluoropropionic acid (CF3CF2C(O)OH) has been investigated with a focus on its complex structural properties. As a formal derivative of propanoic acid, the incorporation of fluorine atoms imparts unique structural features, including three distinct monomeric conformations and a dimeric structure. This study presents experimental findings, supported by computational modeling, to explore these characteristics. The analysis includes an FTIR study of the isolated species in an Ar-cryogenic matrix and the low-temperature determination of its crystalline structure using single-crystal X-ray diffraction.