HCl vibrational fundamental band: Line intensities and temperature dependence of self-broadening coefficients

Self-broadening in the vibrational fundamental of HCl is inversely proportional to the temperature for transitions which lie near the Boltzmann rotational maximum and becomes monotonically less temperature-dependent as the rotational quantum number increases. We have determined the rotationless transition moment to have the value of 5.57 ± 0.13 × 10^?3 (Debye)² and the first Herman-Wallis factor, C = ?2.543 ± 0.019 × 10^?2.