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Calculated Frequencies for CH3CH2OH (Ethanol) 1A' Cs

QCISD/6-31+G** 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' 3901 3688 23.841 1.0668      
2 A' 3186 3012 30.728 1.1013      
3 A' 3104 2934 17.077 1.0361      
4 A' 3068 2901 66.386 1.056      
5 A' 1579 1492 1.873 1.0997      
6 A' 1547 1462 2.690 1.0542      
7 A' 1495 1413 17.976 1.448      
8 A' 1445 1366 0.346 1.2345      
9 A' 1290 1220 72.661 1.3051      
10 A' 1126 1065 26.539 2.3415      
11 A' 1069 1010 54.400 1.8612      
12 A' 923 873 15.076 2.2367      
13 A' 423 400 12.151 2.6494      
14 A" 3198 3023 32.708 1.1037      
15 A" 3107 2937 49.838 1.108      
16 A" 1528 1445 5.010 1.0429      
17 A" 1324 1252 0.039 1.1285      
18 A" 1211 1145 3.500 1.4698      
19 A" 836 791 0.045 1.0797      
20 internal rotation A" 280 265 46.784 1.0742      
21 internal rotation A" 224 212 99.995 1.1469      
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) 17932 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 16953 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