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

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-228.979033
Energy at 298.15K-228.986485
Nuclear repulsion energy131.742000
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 HF/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 Ag 4183 3784 0.00      
2 Ag 3179 2875 0.00      
3 Ag 1669 1509 0.00      
4 Ag 1646 1489 0.00      
5 Ag 1416 1281 0.00      
6 Ag 1198 1084 0.00      
7 Ag 1066 964 0.00      
8 Ag 518 468 0.00      
9 Au 3229 2920 168.63      
10 Au 1356 1226 7.09      
11 Au 902 816 6.39      
12 Au 295 267 338.24      
13 Au 152 137 19.70      
14 Bg 3197 2892 0.00      
15 Bg 1430 1293 0.00      
16 Bg 1273 1151 0.00      
17 Bg 287 260 0.00      
18 Bu 4184 3784 74.73      
19 Bu 3181 2876 144.40      
20 Bu 1677 1517 7.49      
21 Bu 1552 1404 17.51      
22 Bu 1299 1175 243.13      
23 Bu 1190 1076 182.24      
24 Bu 321 290 26.38      

Unscaled Zero Point Vibrational Energy (zpe) 20199.4 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 18268.4 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 HF/6-311G*
ABC
1.04370 0.13603 0.12595

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.755 0.000
C2 0.000 -0.755 0.000
O3 1.338 -1.172 0.000
O4 -1.338 1.172 0.000
H5 1.387 -2.109 0.000
H6 -1.387 2.109 0.000
H7 -0.527 -1.114 0.880
H8 -0.527 -1.114 -0.880
H9 0.527 1.114 0.880
H10 0.527 1.114 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.50942.34561.40163.18221.93892.13152.13151.08681.0868
C21.50941.40162.34561.93893.18221.08681.08682.13152.1315
O32.34561.40163.55730.93874.26532.06342.06342.57972.5797
O41.40162.34563.55734.26530.93872.57972.57972.06342.0634
H53.18221.93890.93874.26535.04912.33052.33053.44973.4497
H61.93893.18224.26530.93875.04913.44973.44972.33052.3305
H72.13151.08682.06342.57972.33053.44971.75972.46453.0283
H82.13151.08682.06342.57972.33053.44971.75973.02832.4645
H91.08682.13152.57972.06343.44972.33052.46453.02831.7597
H101.08682.13152.57972.06343.44972.33053.02832.46451.7597

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 107.310 C1 C2 H7 109.289
C1 C2 H8 109.289 C1 O4 H6 110.319
C2 C1 O4 107.310 C2 C1 H9 109.289
C2 C1 H10 109.289 C2 O3 H5 110.319
O3 C2 H7 111.406 O3 C2 H8 111.406
O4 C1 H9 111.406 O4 C1 H10 111.406
H7 C2 H8 108.109 H9 C1 H10 108.109
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.121 0.379   0.316
2 C -0.121 0.379   0.315
3 O -0.678 -0.789   -0.769
4 O -0.678 -0.789   -0.770
5 H 0.423 0.460   0.460
6 H 0.423 0.460   0.460
7 H 0.188 -0.025   -0.003
8 H 0.188 -0.025   -0.003
9 H 0.188 -0.025   -0.003
10 H 0.188 -0.025   -0.003


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 0.004 -0.005 0.000 0.007


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.221 -0.313 0.000
y -0.313 4.645 0.000
z 0.000 0.000 3.626


<r2> (average value of r2) Å2
<r2> 93.931
(<r2>)1/2 9.692