ArCH2+ : A Detectable Noble Gas Molecule.
Chemphyschem
; 19(24): 3388-3392, 2018 12 19.
Article
in En
| MEDLINE
| ID: mdl-30370986
ABSTRACT
The noble gas molecular cation, ArCH2+ , has been observed in mass spectrometry experiments, and the present work is providing high-level quantum chemical predictions for the vibrational and rotational spectroscopic data necessary to observe this molecule inâ
situ in other laboratory conditions. The Ar-C stretch in this cation is a bright fundamental vibrational frequency that should be observable in the early regions of the far-infrared at 421.2â
cm-1 for the universally most common 36 Ar isotope. The near-prolate nature of this molecule and its 2.91 D dipole moment should also make it distinguishable for submillimeter detection, as well. Furthermore, the Ar-C bond strength in ArCH2+ is greater than the global minimum for the dissociation of the experimentally known ArOH+ cation. As a result, the infrared spectrum of this simple organo-noble gas molecule is likely waiting to be observed and may already exist in the spectra of hydrocarbon cations in argon-matrix condensed phase experiments.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Chemphyschem
Journal subject:
BIOFISICA
/
QUIMICA
Year:
2018
Document type:
Article
Affiliation country:
United States