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: HSEh1PBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/TZVP
 hartrees
Energy at 0K-154.928468
Energy at 298.15K-154.935146
HF Energy-154.928468
Nuclear repulsion energy82.019417
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 HSEh1PBE/TZVP
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' 3880 3725 28.57 107.17 0.27 0.43
2 A' 3136 3011 25.13 60.28 0.75 0.86
3 A' 3058 2936 14.52 153.33 0.01 0.01
4 A' 2994 2875 70.02 139.71 0.09 0.17
5 A' 1528 1467 2.43 4.43 0.66 0.79
6 A' 1498 1438 2.97 15.95 0.75 0.86
7 A' 1459 1401 13.41 4.28 0.56 0.72
8 A' 1402 1346 3.13 0.25 0.73 0.85
9 A' 1273 1223 75.83 3.50 0.73 0.84
10 A' 1123 1078 38.51 6.27 0.63 0.77
11 A' 1050 1008 51.43 4.25 0.14 0.25
12 A' 913 877 12.16 4.85 0.41 0.58
13 A' 420 403 12.46 0.39 0.66 0.80
14 A" 3141 3015 27.94 47.32 0.75 0.86
15 A" 3024 2904 56.35 103.80 0.75 0.86
16 A" 1477 1419 6.81 10.51 0.75 0.86
17 A" 1305 1253 0.14 11.95 0.75 0.86
18 A" 1183 1135 4.44 1.13 0.75 0.86
19 A" 823 790 0.10 0.14 0.75 0.86
20 A" 289 278 81.93 2.23 0.75 0.86
21 A" 249 239 56.60 0.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17612.7 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 16909.9 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 HSEh1PBE/TZVP
ABC
1.18358 0.31433 0.27387

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.168 -0.403 0.000
C2 0.000 0.550 0.000
O3 -1.194 -0.215 0.000
H4 -1.943 0.385 0.000
H5 2.112 0.147 0.000
H6 1.141 -1.042 0.885
H7 1.141 -1.042 -0.885
H8 0.048 1.198 0.886
H9 0.048 1.198 -0.886

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.50782.37023.20981.09241.09171.09172.14612.1461
C21.50781.41851.95022.14992.14942.14941.09891.0989
O32.37021.41850.95963.32622.63102.63102.07972.0797
H43.20981.95020.95964.06213.51193.51192.32592.3259
H51.09242.14993.32624.06211.77201.77202.48012.4801
H61.09172.14942.63103.51191.77201.76932.49313.0580
H71.09172.14942.63103.51191.77201.76933.05802.4931
H82.14611.09892.07972.32592.48012.49313.05801.7724
H92.14611.09892.07972.32592.48013.05802.49311.7724

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 108.150 C1 C2 H8 109.836
C1 C2 H9 109.836 C2 C1 H5 110.529
C2 C1 H6 110.539 C2 C1 H7 110.539
C2 O3 H4 108.649 O3 C2 H8 110.766
O3 C2 H9 110.766 H5 C1 H6 108.450
H5 C1 H7 108.450 H6 C1 H7 108.258
H8 C2 H9 107.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.330      
2 C -0.107      
3 O -0.384      
4 H 0.266      
5 H 0.110      
6 H 0.124      
7 H 0.124      
8 H 0.099      
9 H 0.099      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.055 1.691 0.000 1.692
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.672 -2.535 0.000
y -2.535 -20.119 0.000
z 0.000 0.000 -20.203
Traceless
 xyz
x 2.489 -2.535 0.000
y -2.535 -1.182 0.000
z 0.000 0.000 -1.307
Polar
3z2-r2-2.615
x2-y22.447
xy-2.535
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.844 -0.134 0.000
y -0.134 4.384 0.000
z 0.000 0.000 4.093


<r2> (average value of r2) Å2
<r2> 54.033
(<r2>)1/2 7.351