Matrix-Isolation Spectra of H2S and D2S: An Example of the Application of the Uncoupled Oscillator Approximation

Abstract

The first direct observation of the ${\nu }_3$ vibration of H₂S and D₂S is reported. The location of this fundamental in the matrix spectra is consonant with the band center calculated from the overtone‐combination frequencies in the gas phase. General, quadratic, valence force constants are calculated from the isotopic shifts using simple equations based on the uncoupled oscillator approximation.