return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Home > Vibrations > Calculated > Frequencies OR Calculated > Vibrations > Frequencies

Calculated Frequencies for CH3CH2OH (Ethanol) 1A' Cs

B3PW91/aug-cc-pVDZ 1A' CS

19 05 15 13 41
InChI=1S/C2H6O/c1-2-3/h3H,2H2,1H3 INChIKey=LFQSCWFLJHTTHZ-UHFFFAOYSA-N
Mode
Number
Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensity
(km/mol)
reduced mass
(u)
description Raman Act
4/u)
Dep P Dep U
1 A' 3858 3721 28.421 1.0667 106.97 0.21 0.35
2 A' 3133 3022 25.695 1.1016 55.57 0.75 0.86
3 A' 3048 2940 15.834 1.0357 181.09 0.00 0.00
4 A' 2995 2889 70.122 1.0561 139.33 0.07 0.13
5 A' 1497 1444 1.500 1.0924 2.80 0.72 0.83
6 A' 1471 1418 2.417 1.0625 6.03 0.75 0.86
7 A' 1435 1384 12.477 1.4501 1.92 0.54 0.70
8 A' 1372 1323 2.282 1.2369 0.07 0.40 0.57
9 A' 1267 1222 66.968 1.2269 0.99 0.69 0.82
10 A' 1110 1071 48.596 2.8076 5.34 0.53 0.69
11 A' 1044 1007 39.117 1.9175 6.03 0.12 0.21
12 A' 903 871 12.656 2.0868 4.89 0.20 0.33
13 A' 415 400 10.800 2.5937 0.31 0.61 0.75
14 A" 3136 3025 29.372 1.1033 41.73 0.75 0.86
15 A" 3031 2923 47.666 1.1071 98.53 0.75 0.86
16 A" 1451 1400 6.215 1.0367 4.71 0.75 0.86
17 A" 1285 1240 0.020 1.1075 3.89 0.75 0.86
18 A" 1164 1123 2.944 1.5332 0.42 0.75 0.86
19 A" 810 782 0.285 1.0824 0.17 0.75 0.86
20 internal rotation A" 299 288 91.809 1.0694 1.40 0.75 0.86
21 internal rotation A" 237 229 23.186 1.153 0.16 0.75 0.86
The internal rotation icon indicates there is calculated data on internal rotation or inversion corresponding to this vibrational mode. Click on the icon in the table to go to the pages on internal rotation. Other modes may correspond to internal rotation too, but we have only calculated the internal rotation potential energy surface for the indicated modes.
List of frequencies only

Unscaled Zero Point Vibrational Energy (zpe) 17481 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 16862 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.

List of Irreducible Representations for Cs

Rep deg. n vib IR R
A' 1 13 active active
A" 1 8 active active