Perturbation theory based equation of state for polar molecular fluids: I. Pure fluids

N2-broadening coefficients in the ν2 and ν4 bands of PH3

“…In the SDRP, we have considered q = 5 best value obtained in [13] by fitting Ar-broadened lines in the fundamental band of CO and also corresponding to the preponderant quadrupole-quadrupole interactions for PH 3 -N 2 . In this model as well as in the RP, the velocity-changing collision frequency b c is fitted and the values obtained (which are strongly sensitive to small baseline uncertainties) are significantly smaller for the SDRP than the theoretical values derived from the mass diffusion coefficient, b diff 0 ¼ 25:88 Â 10 À3 cm À1 atm À1 at 297 K. This coefficient has been calculated from the following Lennard-Jones parameters for PH 3 [14]: e = 302.7 K, r = 3.903 Å , and N 2 [15]: e = 91.91 K, r = 3.816 Å .…”

CO2-broadening coefficients in the ν4+ν5 band of acetylene

“…B i and D i are the rotational constants of initial levels (ground states) while B f corresponds to final level (m 4 + m 5 of C 2 H 2 ). For CO 2 , the rotational parameters are taken from [42] and the LJ parameters from [43].…”

N2-broadening coefficients in the ν3 band of CS2 at room and low temperatures

“…6 with theoretical values Note. The quadrupole moments of CS 2 and N 2 are taken from [24,25] and the LJ parameters from [26].…”