Direct tracking of H2 roaming reaction in real time

Debadarshini Mishra (), Aaron C. LaForge (), Lauren M. Gorman, Sergio Díaz-Tendero, Fernando Martín and Nora Berrah
Additional contact information
Debadarshini Mishra: University of Connecticut
Aaron C. LaForge: University of Connecticut
Lauren M. Gorman: University of Connecticut
Sergio Díaz-Tendero: Universidad Autónoma de Madrid
Fernando Martín: Universidad Autónoma de Madrid
Nora Berrah: University of Connecticut

Nature Communications, 2024, vol. 15, issue 1, 1-8

Abstract: Abstract Roaming is an unconventional type of molecular reaction where fragments, instead of immediately dissociating, remain weakly bound due to long-range Coulombic interactions. Due to its prevalence and ability to form new molecular compounds, roaming is fundamental to photochemical reactions in small molecules. However, the neutral character of the roaming fragment and its indeterminate trajectory make it difficult to identify experimentally. Here, we introduce an approach to image roaming, utilizing intense, femtosecond IR radiation combined with Coulomb explosion imaging to directly reconstruct the momentum vector of the neutral roaming H2, a precursor to $${{{{{{{{\rm{H}}}}}}}}_{3}}^{+}$$ H 3 + formation, in acetonitrile, CH3CN. This technique provides a kinematically complete picture of the underlying molecular dynamics and yields an unambiguous experimental signature of roaming. We corroborate these findings with quantum chemistry calculations, resolving this unique dissociative process.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-49671-6 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-49671-6

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-49671-6

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().