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Calculated Frequencies for CH3CH2OH (Ethanol) 1A' Cs

B3LYP/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' 3751 3602 9.683 1.0663 description 115.08 0.31 0.47
2 A' 3129 3004 31.512 1.1024 description 61.04 0.75 0.86
3 A' 3058 2936 15.700 1.035 description 109.97 0.01 0.02
4 A' 2983 2864 73.197 1.0551 description 108.14 0.12 0.22
5 A' 1561 1499 2.627 1.0905 description 4.27 0.63 0.78
6 A' 1532 1471 3.099 1.0456 description 26.87 0.75 0.86
7 A' 1481 1423 16.220 1.4585 description 5.65 0.66 0.80
8 A' 1428 1371 0.424 1.2319 description 1.17 0.64 0.78
9 A' 1292 1240 86.480 1.2481 description 7.01 0.75 0.86
10 A' 1124 1079 22.988 2.2285 description 5.73 0.55 0.71
11 A' 1043 1001 56.247 2.1794 description 2.93 0.18 0.31
12 A' 912 875 10.158 2.2083 description 5.98 0.39 0.56
13 A' 417 401 11.300 2.6408 description 0.28 0.69 0.82
14 A" 3134 3009 34.312 1.1037 description 49.29 0.75 0.86
15 A" 3007 2887 77.466 1.1084 description 91.88 0.75 0.86
16 A" 1514 1454 4.424 1.0409 description 17.49 0.75 0.86
17 A" 1310 1258 0.081 1.1217 description 14.89 0.75 0.86
18 A" 1195 1147 4.853 1.4962 description 3.31 0.75 0.86
19 A" 830 797 0.016 1.0797 description 0.06 0.75 0.86
20 internal rotation A" 301 289 98.619 1.0694 description 4.50 0.75 0.86
21 internal rotation A" 251 241 32.563 1.1515 description 0.89 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) 17625 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 16925 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