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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: QCISD/6-311G**

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/6-311G**
 hartrees
Energy at 0K-154.671585
Energy at 298.15K-154.678262
Nuclear repulsion energy81.768495
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/6-311G**
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' 3921 3741 21.74      
2 A' 3137 2993 32.62      
3 A' 3059 2919 15.64      
4 A' 3012 2874 66.35      
5 A' 1559 1487 2.24      
6 A' 1526 1456 2.33      
7 A' 1498 1430 11.03      
8 A' 1427 1361 1.21      
9 A' 1312 1252 81.88      
10 A' 1143 1090 26.22      
11 A' 1070 1021 44.49      
12 A' 925 882 9.79      
13 A' 423 403 10.83      
14 A" 3144 2999 35.75      
15 A" 3044 2904 60.58      
16 A" 1502 1433 4.48      
17 A" 1326 1265 0.03      
18 A" 1207 1152 4.98      
19 A" 835 796 0.18      
20 A" 285 272 31.93      
21 A" 235 224 92.09      

Unscaled Zero Point Vibrational Energy (zpe) 17793.4 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 16976.7 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/6-311G**
ABC
1.16593 0.31336 0.27243

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.170 -0.413 0.000
C2 0.000 0.557 0.000
O3 -1.197 -0.212 0.000
H4 -1.928 0.406 0.000
H5 2.123 0.129 0.000
H6 1.128 -1.052 0.889
H7 1.128 -1.052 -0.889
H8 0.052 1.203 0.890
H9 0.052 1.203 -0.890

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.52022.37583.20511.09621.09501.09502.15802.1580
C21.52021.42271.93432.16522.15642.15641.10111.1011
O32.37581.42270.95743.33712.62692.62692.08672.0867
H43.20511.93430.95744.06043.50083.50082.31272.3127
H51.09622.16523.33714.06041.78161.78162.49682.4968
H61.09502.15642.62693.50081.78161.77742.49883.0672
H71.09502.15642.62693.50081.78161.77743.06722.4988
H82.15801.10112.08672.31272.49682.49883.06721.7799
H92.15801.10112.08672.31272.49683.06722.49881.7799

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.618 C1 C2 H8 109.790
C1 C2 H9 109.790 C2 C1 H5 110.653
C2 C1 H6 110.024 C2 C1 H7 110.024
C2 O3 H4 107.096 O3 C2 H8 110.901
O3 C2 H9 110.901 H5 C1 H6 108.797
H5 C1 H7 108.797 H6 C1 H7 108.497
H8 C2 H9 107.843
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability