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 CH2CHOH (ethenol)

using model chemistry: PBEPBE/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 PBEPBE/6-311G**
 hartrees
Energy at 0K-153.668128
Energy at 298.15K-153.672227
Nuclear repulsion energy69.904768
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 PBEPBE/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' 3685 3652 21.52      
2 A' 3182 3153 8.82      
3 A' 3115 3086 7.42      
4 A' 3079 3051 7.24      
5 A' 1656 1641 160.91      
6 A' 1396 1383 11.97      
7 A' 1330 1318 3.39      
8 A' 1285 1273 7.85      
9 A' 1095 1085 172.21      
10 A' 931 923 6.16      
11 A' 473 469 12.28      
12 A" 955 947 40.99      
13 A" 766 759 66.09      
14 A" 691 685 0.41      
15 A" 489 484 97.62      

Unscaled Zero Point Vibrational Energy (zpe) 12064.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 11954.3 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 PBEPBE/6-311G**
ABC
2.01213 0.34738 0.29624

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.221 -0.114 0.000
C2 0.000 0.440 0.000
O3 -1.202 -0.205 0.000
H4 1.370 -1.197 0.000
H5 2.106 0.520 0.000
H6 -0.153 1.522 0.000
H7 -1.029 -1.163 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.34042.42481.09361.08882.13632.4829
C21.34041.36442.13482.10791.09321.9052
O32.42481.36442.75743.38712.02100.9739
H41.09362.13482.75741.86773.11702.4001
H51.08882.10793.38711.86772.47193.5588
H62.13631.09322.02103.11702.47192.8250
H72.48291.90520.97392.40013.55882.8250

picture of ethenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 127.401 C1 C2 H6 122.441
C2 C1 H4 122.263 C2 C1 H5 120.038
C2 O3 H7 107.974 O3 C2 H6 110.158
H4 C1 H5 117.699
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.324      
2 C 0.030      
3 O -0.293      
4 H 0.103      
5 H 0.121      
6 H 0.123      
7 H 0.240      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.358 -0.855 0.000 0.927
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.984 1.396 0.000
y 1.396 -14.441 0.000
z 0.000 0.000 -20.757
Traceless
 xyz
x -2.385 1.396 0.000
y 1.396 5.930 0.000
z 0.000 0.000 -3.545
Polar
3z2-r2-7.090
x2-y2-5.543
xy1.396
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.569 -0.269 0.000
y -0.269 4.168 0.000
z 0.000 0.000 2.203


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000