Millimeter-Wave and High-Resolution Infrared Spectroscopy of the Ground and 14 Vibrationally Excited States Lying Below 1300 cm^-1 of Pyrazole.

ABSTRACT: The gas-phase rotational spectrum from 85 to 750 GHz and high-resolution infrared (IR) spectrum (Canadian Light Source) of 1H-pyrazole have been analyzed for the ground and vibrationally excited states lying below 1300 cm^-1. The analysis benefits from the simultaneous analysis of rotational and high-resolution IR transitions that cover the same approximate ranges of J and K. In total, over 4400 transitions for the ground state have been measured, assigned, and least-squares fit to complete sextic centrifugally distorted-rotor Hamiltonian models. The presented ground-state rotational spectrum provides the foundation for astronomical searches across most of the frequency range covered by modern radiotelescopes. Additionally, the rotational and high-resolution

SUBMITTER: Esselman BJ 

PROVIDER: S-EPMC12598870 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature