Issue 6, 2020

Statistical molecular fragmentation: which parameters influence the branching ratios?

Abstract

The fragmentation of molecules under conditions that result in yields of products that are thermodynamically controlled can be readily studied with statistical models. We explore which parameters influence the branching ratios using our recently developed Statistical Molecular Fragmentation model (SMF) and apply it to the decomposition of propane. We find that the fragmentation process has low sensitivity to the differences between the molecular descriptions given by commonly used ab initio methods (B3LYP, CCSD(T) and composite methods with different atom-centered basis sets). However, the branching ratios are most influenced by the vibrational frequencies of the molecules and radicals present in the decomposition pathways.

Graphical abstract: Statistical molecular fragmentation: which parameters influence the branching ratios?

Article information

Article type
Paper
Submitted
15 9月 2019
Accepted
27 11月 2019
First published
27 11月 2019

Phys. Chem. Chem. Phys., 2020,22, 3160-3172

Statistical molecular fragmentation: which parameters influence the branching ratios?

P. Désesquelles, N. Van-Oanh, S. Thomas and D. Domin, Phys. Chem. Chem. Phys., 2020, 22, 3160 DOI: 10.1039/C9CP05095G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements