Line Intensities of the Phosphine Dyad at 10 μm

Ab initio dipole moment and theoretical rovibrational intensities in the electronic ground state of PH3

“…We compare the theoretical intensities for PH 3 with experimental data from the recent spectroscopic study of the fundamental transitions to the m 2 /m 4 dyad by Brown et al [27]. In addition, Brown et al [27] observed 64 transitions in the 2m 2 ‹ m 2 hot band, and so we also simulate this hot band.…”

The absorption spectrum of phosphine (PH3) between 2.8 and 3.7μm: Line positions, intensities, and assignments

“…In particular, Fusina and DiLonardo [8] modeled some 2500 dyad positions. Later, some 1000 line intensities of the dyad were measured and modeled within 2% by Brown et al [9]. Recently, self-broadening coefficients and absolute intensities for the dyad were reported by Salem et al [10]; on average, their 25 line intensities were within 1% of Brown et al results.…”

Collisional broadening and line intensities in the ν2 and ν4 bands of PH3

“…The experimental values of S 0 are compared in Table 3 with those measured by Brown et al [10] using a Fourier-transform spectrometer. Within our experimental uncertainties, a good agreement is obtained with their measurements.…”

“…Absolute line strengths and line positions were reported by Lovejoy et al [9] at 295 K for 200 vibration-rotation transitions near 5 lm region using a diode-laser spectrometer. Recently, over 1000 measured line intensities have been reported by Brown et al [10] for the region 830 to 1310 cm À1 , taking into account the strong Coriolis interactions between the upper m 2 and m 4 vibrational states. These measurements were fitted to 1.5% for m 2 and 2.1% for m 4 from three Herman-Wallis type terms.…”