Triatomic Linear Molecules Containing Carbon and Oxygen, Sulfur, Selenium, or Tellurium. III. Absolute Intensity of the σ3 Band of CSe2

Abstract

The rate of change of the axial dipole moment with asymmetric bond extension in carbon diselenide has been computed from the measured gas phase infrared absorption intensity of the σ3 fundamental band. The absolute intensity was measured by the pressure-broadening technique, using nitrogen or air as the foreign gas. The magnitudes of dμ/dr for CO2, OCS, CS2, and CSe2 are compared. Also, the absorption intensity of the σ3 band of CSe2 dissolved in CS2 was measured.