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: wB97X-D/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/6-311+G(3df,2p)
 hartrees
Energy at 0K-155.051001
Energy at 298.15K-155.057667
HF Energy-155.051001
Nuclear repulsion energy82.044453
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 wB97X-D/6-311+G(3df,2p)
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' 3942 3942 35.88 89.33 0.23 0.38
2 A' 3129 3129 25.72 53.06 0.74 0.85
3 A' 3049 3049 15.15 160.19 0.00 0.01
4 A' 2997 2997 65.47 119.46 0.08 0.14
5 A' 1534 1534 2.22 2.77 0.75 0.86
6 A' 1508 1508 3.03 6.38 0.75 0.86
7 A' 1462 1462 11.28 1.56 0.30 0.47
8 A' 1408 1408 2.57 0.01 0.51 0.67
9 A' 1280 1280 74.03 0.94 0.75 0.86
10 A' 1131 1131 41.61 5.38 0.48 0.65
11 A' 1049 1049 50.88 4.43 0.14 0.25
12 A' 915 915 8.77 5.86 0.19 0.31
13 A' 424 424 11.30 0.30 0.58 0.73
14 A" 3131 3131 28.73 38.64 0.75 0.86
15 A" 3029 3029 44.21 90.38 0.75 0.86
16 A" 1489 1489 6.96 4.58 0.75 0.86
17 A" 1311 1311 0.00 4.05 0.75 0.86
18 A" 1188 1188 3.50 0.36 0.75 0.86
19 A" 827 827 0.22 0.11 0.75 0.86
20 A" 281 281 81.13 1.01 0.75 0.86
21 A" 242 242 40.62 0.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17661.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17661.0 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 wB97X-D/6-311+G(3df,2p)
ABC
1.18596 0.31386 0.27358

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.170 -0.407 0.000
C2 0.000 0.551 0.000
O3 -1.194 -0.211 0.000
H4 -1.946 0.380 0.000
H5 2.111 0.144 0.000
H6 1.141 -1.044 0.884
H7 1.141 -1.044 -0.884
H8 0.043 1.196 0.885
H9 0.043 1.196 -0.885

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51192.37263.21341.09051.09001.09002.14972.1497
C21.51191.41681.95302.15022.15082.15081.09631.0963
O32.37261.41680.95583.32492.63222.63222.07262.0726
H43.21341.95300.95584.06383.51213.51212.32502.3250
H51.09052.15023.32494.06381.77041.77042.48332.4833
H61.09002.15082.63223.51211.77041.76722.49433.0580
H71.09002.15082.63223.51211.77041.76723.05802.4943
H82.14971.09632.07262.32502.48332.49433.05801.7708
H92.14971.09632.07262.32502.48333.05802.49431.7708

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 108.176 C1 C2 H8 109.993
C1 C2 H9 109.993 C2 C1 H5 110.379
C2 C1 H6 110.464 C2 C1 H7 110.464
C2 O3 H4 109.262 O3 C2 H8 110.478
O3 C2 H9 110.478 H5 C1 H6 108.570
H5 C1 H7 108.570 H6 C1 H7 108.328
H8 C2 H9 107.728
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.399      
2 C -0.002      
3 O -0.581      
4 H 0.220      
5 H 0.155      
6 H 0.158      
7 H 0.158      
8 H 0.145      
9 H 0.145      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.124 1.599 0.000 1.604
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.778 -2.481 0.000
y -2.481 -20.027 0.000
z 0.000 0.000 -20.197
Traceless
 xyz
x 2.334 -2.481 0.000
y -2.481 -1.040 0.000
z 0.000 0.000 -1.294
Polar
3z2-r2-2.588
x2-y22.249
xy-2.481
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.253 -0.117 0.000
y -0.117 4.724 0.000
z 0.000 0.000 4.403


<r2> (average value of r2) Å2
<r2> 54.058
(<r2>)1/2 7.352