Application of Intensity Ratios to Disentangle Rotational Spectra of Large Molecular Clusters: Trifluoroethylene with up to 6 CO₂ Molecules.

ABSTRACT: A generalizable method of intensity ratio analysis has facilitated identification and deconvolution of rotational spectra for nine mixed trifluoroethylene (TFE)/CO₂ clusters, (TFE)_m(CO₂)_n, within a single spectroscopic data set. Molecular complexes with m = 1-2 and n = 1-6 have been investigated using chirped-pulse (CP) Fourier-transform microwave (FTMW) spectroscopy. Collection of two spectra with different CO₂ concentrations allowed determination of intensity ratios of rotational transitions, which were then correlated with cluster size and formula. The wide composition range of observed TFE/CO₂ clusters provides an abundance of data with which to benchmark computational methods for determining

SUBMITTER: Gilbert KC 

PROVIDER: S-EPMC12621246 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature