Calculation of the Absorption Cross Sections of Some Molecules from GEISA Database at the Wavelengths of Isotopically Different CO₂ Lasers

Table 5

Comparison of our calculation results with the experimental literature data for the strongest transitions in NH₃, C₂H₄, and O₃ molecules at ¹²C¹⁶O₂ laser frequencies.

M	Laser line	𝜈, cm^−1	𝜎(M), 10^−20 cm^2			𝐾𝑇		𝐾𝑃
			[24]	[22]	a	[22]	a	[22]	a
NH3	9R(16)	1075.98782	51.6	c	52.1	c	0.70	c	−0.29
	11R(8)	967.70723	88.9	92.6	102	−1.07	−0.98	−0.30	−0.33
	11R(14)	971.93026	2.56^b	30.2	27.6	−0.62	−0.96	−0.59	−0.61
	11P(32)	932.96042	60.9	c	57.6	c	0.03	c	−0.44
	11P(34)	931.00143	50.3	c	55.2	c	−0.87	c	0.60
	9R(30)	1084.63514	c	c	303	c	0.38	c	−0.83
	9P(20)	1046.85423	8.77	12.1	13.2	−1.50	−1.62	0.96	0.92
C2H4	11P(14)	949.47931	118.4	145.1	133	−0.54	0.16	0.03	−0.13
	11P(16)	947.74198	c	23.9	21.4	−0.46	−0.55	−0.02	0.01
	11R(24)	978.47229	20.5	20.9	19.3	−0.83	−0.49	−0.06	−0.02
	11P(12)	951.19226	c	19.7	17.3	−0.01	−0.46	0.30	0.42
O3	9P(14)	1052.19555	51.6	c	47.4	c	−0.62	c	0.08
	9P(12)	1053.92350	49.5	c	44.0	c	−0.38	c	−0.22
	9P(8)	1057.30016	51.6	c	49.2	c	−0.02	c	−0.12

^aThis work.
^bProbably, misprint.
^cNo data.