return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: MP3=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/6-31+G**
 hartrees
Energy at 0K-154.621366
Energy at 298.15K-154.628055
HF Energy-154.095357
Nuclear repulsion energy81.923288
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 MP3=FULL/6-31+G**
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' 3959 3688 29.79      
2 A' 3224 3004 27.99      
3 A' 3137 2923 15.69      
4 A' 3100 2888 64.69      
5 A' 1590 1481 1.94      
6 A' 1555 1449 2.92      
7 A' 1508 1405 17.91      
8 A' 1454 1355 0.32      
9 A' 1302 1213 78.84      
10 A' 1146 1068 31.14      
11 A' 1078 1004 49.22      
12 A' 935 871 11.77      
13 A' 427 398 12.24      
14 A" 3235 3013 29.73      
15 A" 3141 2926 49.65      
16 A" 1537 1432 5.45      
17 A" 1337 1245 0.00      
18 A" 1220 1137 4.11      
19 A" 841 784 0.03      
20 A" 288 268 69.12      
21 A" 237 221 79.68      

Unscaled Zero Point Vibrational Energy (zpe) 18125.4 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 16885.6 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 MP3=FULL/6-31+G**
ABC
1.17550 0.31382 0.27293

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.172 -0.404 0.000
C2 0.000 0.555 0.000
O3 -1.194 -0.217 0.000
H4 -1.956 0.366 0.000
H5 2.112 0.146 0.000
H6 1.137 -1.038 0.883
H7 1.137 -1.038 -0.883
H8 0.046 1.198 0.883
H9 0.046 1.198 -0.883

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51392.37353.22101.08851.08751.08752.14762.1476
C21.51391.42181.96462.15072.14652.14651.09371.0937
O32.37351.42180.95913.32562.62442.62442.07872.0787
H43.22101.96460.95914.07313.50923.50922.34082.3408
H51.08852.15073.32564.07311.76931.76932.48032.4803
H61.08752.14652.62443.50921.76931.76572.48753.0507
H71.08752.14652.62443.50921.76931.76573.05072.4875
H82.14761.09372.07872.34082.48032.48753.05071.7666
H92.14761.09372.07872.34082.48033.05072.48751.7666

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.863 C1 C2 H8 109.849
C1 C2 H9 109.849 C2 C1 H5 110.402
C2 C1 H6 110.128 C2 C1 H7 110.128
C2 O3 H4 109.679 O3 C2 H8 110.779
O3 C2 H9 110.779 H5 C1 H6 108.796
H5 C1 H7 108.796 H6 C1 H7 108.546
H8 C2 H9 107.728
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability