Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Calculated Frequencies for HCOOH (Formic acid) ¹A^' C_s

MP2=FULL/aug-cc-pVQZ ¹A^' CS

Mode Number	Symmetry	Frequency (cm-1)	Scaled Frequency (cm-1)	IR Intensity (km/mol)	reduced mass (u)	description	Raman Act (Å4/u)	Dep P	Dep U
1	A'	3766	3602	82.374	1.0638		65.04	0.14	0.24
2	A'	3141	3004	31.279	1.0928		108.15	0.24	0.38
3	A'	1808	1729	334.355	8.2401		18.56	0.11	0.19
4	A'	1415	1354	1.457	1.125		5.43	0.48	0.65
5	A'	1308	1251	17.806	1.8665		2.32	0.18	0.30
6	A'	1137	1087	265.138	3.0566		2.89	0.15	0.26
7	A'	631	604	41.899	3.4481		3.18	0.31	0.47
8	A"	1067	1020	3.431	1.5669		0.92	0.75	0.86
9	A"	684	654	135.638	1.2582		0.28	0.75	0.86

Unscaled Zero Point Vibrational Energy (zpe) 7479 cm^-1
Scaled (by 0.9564) Zero Point Vibrational Energy (zpe) 7153 cm^-1

See section Calculated; Vibrations; Scale Factors; Set scaling factors to change the scale factors used here.
See section Calculated; Vibrations; Scale Factors; Calculate a scale factor to determine the least squares best scaling factor.

Vibrational frequencies for multiple conformations are available

List of Irreducible Representations for C_s