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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: QCISD/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-154.692363
Energy at 298.15K-154.699060
HF Energy-154.098787
Nuclear repulsion energy81.958445
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(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3909 3704 23.44      
2 A' 3175 3008 22.17      
3 A' 3092 2929 11.62      
4 A' 3036 2877 54.99      
5 A' 1568 1486 2.09      
6 A' 1533 1453 2.21      
7 A' 1496 1418 12.10      
8 A' 1429 1354 1.33      
9 A' 1308 1239 82.38      
10 A' 1148 1088 29.13      
11 A' 1064 1008 38.87      
12 A' 925 876 7.47      
13 A' 417 396 10.41      
14 A" 3180 3012 23.63      
15 A" 3069 2908 52.99      
16 A" 1515 1435 3.85      
17 A" 1322 1253 0.00      
18 A" 1208 1145 4.65      
19 A" 828 784 0.01      
20 A" 297 281 90.06      
21 A" 249 235 27.60      

Unscaled Zero Point Vibrational Energy (zpe) 17884.4 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 16943.7 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(2df,p)
ABC
1.16729 0.31553 0.27389

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.163 -0.418 0.000
C2 0.000 0.558 0.000
O3 -1.190 -0.208 0.000
H4 -1.931 0.398 0.000
H5 2.115 0.120 0.000
H6 1.120 -1.055 0.885
H7 1.120 -1.055 -0.885
H8 0.060 1.206 0.885
H9 0.060 1.206 -0.885

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51812.36323.19961.09271.09211.09212.15362.1536
C21.51811.41531.93722.15982.15452.15451.09891.0989
O32.36321.41530.95633.32152.61582.61582.08452.0845
H43.19961.93720.95634.05513.49353.49352.32332.3233
H51.09272.15983.32154.05511.77591.77592.48772.4877
H61.09212.15452.61583.49351.77591.77072.49793.0619
H71.09212.15452.61583.49351.77591.77073.06192.4979
H82.15361.09892.08452.32332.48772.49793.06191.7710
H92.15361.09892.08452.32332.48773.06192.49791.7710

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.281 C1 C2 H8 109.716
C1 C2 H9 109.716 C2 C1 H5 110.578
C2 C1 H6 110.188 C2 C1 H7 110.188
C2 O3 H4 107.970 O3 C2 H8 111.382
O3 C2 H9 111.382 H5 C1 H6 108.753
H5 C1 H7 108.753 H6 C1 H7 108.326
H8 C2 H9 107.367
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability