Rotational and hyperfine spectroscopy of diatomic gold monosulfide, AuS

Authors

Austin Parsons, Macalester College

Document Type

Honors Project On-Campus Access Only

Abstract

The hyperfine resolved spectrum of the a⁴Σ^- _3/2 -X₁²Π_3/2 electronic transition of AuS has been recorded in the near infrared region. The molecules were produced via sputtering in a hollow gold cathode. Previous lower resolution spectroscopy revealed a vibrational progression from the (0,0) to (5,0) bands covering the region from 821 to 721 nm. Drawing upon this work, the (0,0), (1,0), and (2,0) bands were re-recorded, first at Doppler-limited and then sub-Doppler resolution, using a continuous-wave Ti:sapphire ring laser. Transitions energies were entered into a least squares fitting routine that calculated rotational and hyperfine constants of the two electronic states.

Recommended Citation

Parsons, Austin, "Rotational and hyperfine spectroscopy of diatomic gold monosulfide, AuS" (2017). Chemistry Honors Projects. 29.
https://digitalcommons.macalester.edu/chem_honors/29