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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-154.551563
Energy at 298.15K-154.558294
HF Energy-154.074094
Nuclear repulsion energy81.612857
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at QCISD/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3764 3585 13.71      
2 A' 3153 3003 28.62      
3 A' 3075 2929 14.05      
4 A' 3017 2873 62.06      
5 A' 1586 1510 2.28      
6 A' 1551 1477 3.14      
7 A' 1508 1436 14.61      
8 A' 1449 1380 0.86      
9 A' 1317 1254 91.35      
10 A' 1144 1089 21.99      
11 A' 1076 1025 46.15      
12 A' 931 887 9.84      
13 A' 425 405 12.25      
14 A" 3162 3012 29.99      
15 A" 3048 2903 66.58      
16 A" 1534 1461 4.37      
17 A" 1327 1263 0.10      
18 A" 1217 1159 4.94      
19 A" 841 800 0.01      
20 A" 313 298 114.23      
21 A" 260 248 26.17      

Unscaled Zero Point Vibrational Energy (zpe) 17848.7 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 16997.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at QCISD/6-31G*
ABC
1.15729 0.31363 0.27213

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.170 -0.409 0.000
C2 0.000 0.558 0.000
O3 -1.194 -0.217 0.000
H4 -1.952 0.386 0.000
H5 2.122 0.136 0.000
H6 1.128 -1.049 0.889
H7 1.128 -1.049 -0.889
H8 0.055 1.210 0.889
H9 0.055 1.210 -0.889

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51812.37183.22181.09721.09601.09602.15722.1572
C21.51811.42411.96012.16362.15582.15581.10351.1035
O32.37181.42410.96873.33502.62252.62252.09472.0947
H43.22181.96010.96874.08213.51303.51302.34522.3452
H51.09722.16363.33504.08211.78361.78362.49312.4931
H61.09602.15582.62253.51301.78361.77792.50083.0684
H71.09602.15582.62253.51301.78361.77793.06842.5008
H82.15721.10352.09472.34522.49312.50083.06841.7781
H92.15721.10352.09472.34522.49313.06842.50081.7781

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.395 C1 C2 H8 109.741
C1 C2 H9 109.741 C2 C1 H5 110.614
C2 C1 H6 110.069 C2 C1 H7 110.069
C2 O3 H4 108.498 O3 C2 H8 111.308
O3 C2 H9 111.308 H5 C1 H6 108.819
H5 C1 H7 108.819 H6 C1 H7 108.399
H8 C2 H9 107.353
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability