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Calculated Frequencies for CH3CH2OH (Ethanol) 1A' Cs

B3PW91/cc-pV(T+d)Z 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' 3860 3721 26.412 1.0663      
2 A' 3118 3006 25.982 1.1014      
3 A' 3043 2934 15.662 1.035      
4 A' 2977 2870 69.507 1.0554      
5 A' 1523 1469 1.500 1.089      
6 A' 1494 1440 2.585 1.052      
7 A' 1454 1402 10.973 1.4454      
8 A' 1396 1346 3.011 1.2385      
9 A' 1272 1226 72.343 1.2407      
10 A' 1119 1079 37.307 2.5972      
11 A' 1040 1002 51.336 2.019      
12 A' 907 874 10.123 2.1161      
13 A' 416 401 10.766 2.6069      
14 A" 3121 3008 29.421 1.1031      
15 A" 3003 2895 54.345 1.1071      
16 A" 1475 1422 6.073 1.0378      
17 A" 1299 1252 0.013 1.1087      
18 A" 1177 1135 3.949 1.5296      
19 A" 818 788 0.228 1.0827      
20 internal rotation A" 280 270 80.541 1.0674      
21 internal rotation A" 241 232 35.719 1.1534      
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) 17518 cm-1
Scaled (by 0.964) Zero Point Vibrational Energy (zpe) 16887 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