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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: PBE1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/3-21G*
 hartrees
Energy at 0K-153.998707
Energy at 298.15K-154.005401
HF Energy-153.998707
Nuclear repulsion energy81.153242
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 PBE1PBE/3-21G*
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' 3545 3403 0.37 137.28 0.31 0.48
2 A' 3164 3037 19.71 54.56 0.75 0.86
3 A' 3083 2959 10.30 98.51 0.01 0.02
4 A' 3004 2883 56.17 100.97 0.14 0.24
5 A' 1593 1529 2.03 6.62 0.68 0.81
6 A' 1568 1505 6.68 31.42 0.75 0.86
7 A' 1476 1417 6.71 3.63 0.65 0.78
8 A' 1454 1395 13.25 2.43 0.70 0.82
9 A' 1296 1244 71.92 10.29 0.75 0.86
10 A' 1129 1083 7.04 6.29 0.46 0.63
11 A' 1028 986 58.44 2.18 0.17 0.29
12 A' 915 878 8.85 6.56 0.36 0.53
13 A' 401 385 15.47 0.29 0.74 0.85
14 A" 3168 3041 22.44 42.71 0.75 0.86
15 A" 3033 2911 69.18 86.18 0.75 0.86
16 A" 1545 1483 7.22 21.18 0.75 0.86
17 A" 1332 1278 1.98 15.17 0.75 0.86
18 A" 1187 1139 4.33 7.12 0.75 0.86
19 A" 864 829 0.54 0.05 0.75 0.86
20 A" 317 304 134.68 8.39 0.75 0.86
21 A" 245 235 18.41 0.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17673.5 cm-1
Scaled (by 0.9598) Zero Point Vibrational Energy (zpe) 16963.1 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 PBE1PBE/3-21G*
ABC
1.12035 0.31428 0.27050

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.174 -0.390 0.000
C2 0.000 0.578 0.000
O3 -1.192 -0.252 0.000
H4 -1.981 0.347 0.000
H5 2.127 0.149 0.000
H6 1.118 -1.028 0.887
H7 1.118 -1.028 -0.887
H8 0.054 1.226 0.890
H9 0.054 1.226 -0.890

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.52212.37013.24001.09491.09421.09422.15842.1584
C21.52211.45281.99432.16972.14882.14881.10191.1019
O32.37011.45280.99083.34302.59322.59322.12842.1284
H43.24001.99430.99084.11243.50443.50442.38852.3885
H51.09492.16973.34304.11241.78651.78652.49952.4995
H61.09422.14882.59323.50441.78651.77452.49263.0612
H71.09422.14882.59323.50441.78651.77453.06122.4926
H82.15841.10192.12842.38852.49952.49263.06121.7795
H92.15841.10192.12842.38852.49953.06122.49261.7795

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 105.609 C1 C2 H8 109.646
C1 C2 H9 109.646 C2 C1 H5 110.954
C2 C1 H6 109.347 C2 C1 H7 109.347
C2 O3 H4 107.896 O3 C2 H8 112.112
O3 C2 H9 112.112 H5 C1 H6 109.391
H5 C1 H7 109.391 H6 C1 H7 108.366
H8 C2 H9 107.694
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.639      
2 C -0.198      
3 O -0.569      
4 H 0.348      
5 H 0.206      
6 H 0.232      
7 H 0.232      
8 H 0.194      
9 H 0.194      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.087 1.724 0.000 1.726
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.013 -2.419 0.000
y -2.419 -19.735 0.000
z 0.000 0.000 -19.840
Traceless
 xyz
x 2.774 -2.419 0.000
y -2.419 -1.308 0.000
z 0.000 0.000 -1.466
Polar
3z2-r2-2.932
x2-y22.722
xy-2.419
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.198 -0.121 0.000
y -0.121 3.553 0.000
z 0.000 0.000 3.187


<r2> (average value of r2) Å2
<r2> 54.222
(<r2>)1/2 7.364