12Rotational Spectroscopy of CO and PH3

Experimental data for the rotational spectrum of carbon monoxide (CO) at two temperatures is available here:

• CO-rot-300.txt (300 K)
• CO-rot-1500.txt (1500 K)

The low-pressure, high resolution spectrum of phosphine, \(\mathrm{PH_3}\), in the region \(0 -- 200\;\mathrm{cm^{-1}}\) is provided in the text file PH3-spec.txt. The line list for phosphine in this region is PH3-lines.txt.

A Jupyter Notebook with an interactive plot of the rotational energy level populations of a diatomic molecule is available: interactive-rotational-populations.zip. You can also run this Notebook in MyBinder here.