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Calculated Frequencies for CH3CH2OH (Ethanol) 1A' Cs

B3PW91/6-31G* 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' 3795 3630 14.196 1.0663      
2 A' 3148 3012 27.985 1.1024      
3 A' 3068 2935 15.261 1.0354      
4 A' 2989 2860 75.211 1.0555      
5 A' 1557 1490 2.577 1.0913      
6 A' 1527 1461 3.293 1.0463      
7 A' 1482 1418 15.305 1.4825      
8 A' 1421 1359 1.575 1.2351      
9 A' 1294 1238 90.640 1.2518      
10 A' 1139 1090 32.396 2.5231      
11 A' 1052 1006 47.466 1.993      
12 A' 920 880 8.241 2.0966      
13 A' 418 400 11.813 2.6246      
14 A" 3152 3016 30.227 1.1035      
15 A" 3016 2886 77.135 1.1078      
16 A" 1509 1444 5.390 1.0396      
17 A" 1312 1255 0.119 1.1124      
18 A" 1194 1142 5.170 1.5202      
19 A" 828 792 0.086 1.0806      
20 internal rotation A" 302 289 103.163 1.0697      
21 internal rotation A" 252 241 33.229 1.1518      
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) 17687 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 16921 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