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All results from a given calculation for C2H6O2 (1,2-Ethanediol)

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-229.989541
Energy at 298.15K-229.996517
Nuclear repulsion energy129.812592
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/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3735 3696 0.00      
2 Ag 2901 2871 0.00      
3 Ag 1474 1459 0.00      
4 Ag 1441 1426 0.00      
5 Ag 1260 1247 0.00      
6 Ag 1071 1060 0.00      
7 Ag 968 958 0.00      
8 Ag 468 464 0.00      
9 Au 2954 2923 116.03      
10 Au 1177 1164 1.20      
11 Au 806 798 2.00      
12 Au 235 233 199.70      
13 Au 110 108 24.21      
14 Bg 2924 2894 0.00      
15 Bg 1255 1242 0.00      
16 Bg 1126 1114 0.00      
17 Bg 224 221 0.00      
18 Bu 3735 3697 38.85      
19 Bu 2907 2878 115.85      
20 Bu 1485 1470 5.25      
21 Bu 1375 1360 13.77      
22 Bu 1168 1155 58.10      
23 Bu 1057 1046 215.82      
24 Bu 278 275 15.76      

Unscaled Zero Point Vibrational Energy (zpe) 18066.4 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 17880.4 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/6-31G(2df,p)
ABC
1.00441 0.13302 0.12299

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.437 0.625 0.000
C2 -0.437 -0.625 0.000
O3 0.437 -1.747 0.000
O4 -0.437 1.747 0.000
H5 -0.119 -2.542 0.000
H6 0.119 2.542 0.000
H7 -1.094 -0.599 0.895
H8 -1.094 -0.599 -0.895
H9 1.094 0.599 0.895
H10 1.094 0.599 -0.895

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.52492.37241.42243.21531.94332.15462.15461.11031.1103
C21.52491.42242.37241.94333.21531.11031.11032.15462.1546
O32.37241.42243.60240.96954.30132.11232.11232.59592.5959
O41.42242.37243.60244.30130.96952.59592.59592.11232.1123
H53.21531.94330.96954.30135.08962.35072.35073.48403.4840
H61.94333.21534.30130.96955.08963.48403.48402.35072.3507
H72.15461.11032.11232.59592.35073.48401.78902.49473.0699
H82.15461.11032.11232.59592.35073.48401.78903.06992.4947
H91.11032.15462.59592.11233.48402.35072.49473.06991.7890
H101.11032.15462.59592.11233.48402.35073.06992.49471.7890

picture of 1,2-Ethanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.153 C1 C2 H7 108.671
C1 C2 H8 108.671 C1 O4 H6 107.152
C2 C1 O4 107.153 C2 C1 H9 108.671
C2 C1 H10 108.671 C2 O3 H5 107.152
O3 C2 H7 112.446 O3 C2 H8 112.446
O4 C1 H9 112.446 O4 C1 H10 112.446
H7 C2 H8 107.352 H9 C1 H10 107.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.101      
2 C -0.101      
3 O -0.395      
4 O -0.395      
5 H 0.289      
6 H 0.289      
7 H 0.104      
8 H 0.104      
9 H 0.104      
10 H 0.104      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.844 5.654 0.000
y 5.654 -18.323 0.000
z 0.000 0.000 -25.045
Traceless
 xyz
x -4.160 5.654 0.000
y 5.654 7.122 0.000
z 0.000 0.000 -2.962
Polar
3z2-r2-5.923
x2-y2-7.521
xy5.654
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.642 0.083 0.000
y 0.083 5.705 0.000
z 0.000 0.000 4.162


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