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

using model chemistry: HF/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-228.950075
Energy at 298.15K-228.957484
Nuclear repulsion energy131.535062
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/cc-pVDZ
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 4163 3780 0.00      
2 Ag 3165 2874 0.00      
3 Ag 1638 1488 0.00      
4 Ag 1621 1472 0.00      
5 Ag 1401 1273 0.00      
6 Ag 1203 1092 0.00      
7 Ag 1066 968 0.00      
8 Ag 517 470 0.00      
9 Au 3220 2924 154.97      
10 Au 1329 1206 5.06      
11 Au 896 814 4.28      
12 Au 278 252 269.87      
13 Au 150 136 19.51      
14 Bg 3190 2896 0.00      
15 Bg 1408 1278 0.00      
16 Bg 1256 1141 0.00      
17 Bg 275 250 0.00      
18 Bu 4163 3780 135.89      
19 Bu 3164 2873 128.82      
20 Bu 1642 1491 7.19      
21 Bu 1527 1386 18.91      
22 Bu 1287 1168 207.35      
23 Bu 1194 1084 185.88      
24 Bu 316 287 21.51      

Unscaled Zero Point Vibrational Energy (zpe) 20033.3 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 18190.3 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 HF/cc-pVDZ
ABC
1.03724 0.13590 0.12582

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVDZ

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 1.337 -1.174 0.000
O4 -1.337 1.174 0.000
H5 1.372 -2.118 0.000
H6 -1.372 2.118 0.000
H7 -0.536 -1.113 0.885
H8 -0.536 -1.113 -0.885
H9 0.536 1.113 0.885
H10 0.536 1.113 -0.885

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51072.34761.40113.18401.93352.13602.13601.09481.0948
C21.51071.40112.34761.93353.18401.09481.09482.13602.1360
O32.34761.40113.55900.94444.26342.07252.07252.58032.5803
O41.40112.34763.55904.26340.94442.58032.58032.07252.0725
H53.18401.93350.94444.26345.04682.33062.33063.45303.4530
H61.93353.18404.26340.94445.04683.45303.45302.33062.3306
H72.13601.09482.07252.58032.33063.45301.76952.47153.0397
H82.13601.09482.07252.58032.33063.45301.76953.03972.4715
H91.09482.13602.58032.07253.45302.33062.47153.03971.7695
H101.09482.13602.58032.07253.45302.33063.03972.47151.7695

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 107.400 C1 C2 H7 109.089
C1 C2 H8 109.089 C1 O4 H6 109.501
C2 C1 O4 107.400 C2 C1 H9 109.089
C2 C1 H10 109.089 C2 O3 H5 109.501
O3 C2 H7 111.689 O3 C2 H8 111.689
O4 C1 H9 111.689 O4 C1 H10 111.689
H7 C2 H8 107.838 H9 C1 H10 107.838
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.175 0.351    
2 C 0.175 0.351    
3 O -0.370 -0.708    
4 O -0.370 -0.708    
5 H 0.156 0.411    
6 H 0.156 0.411    
7 H 0.019 -0.027    
8 H 0.019 -0.027    
9 H 0.019 -0.027    
10 H 0.019 -0.027    


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.222 -0.312 0.000
y -0.312 4.697 0.000
z 0.000 0.000 3.650


<r2> (average value of r2) Å2
<r2> 94.006
(<r2>)1/2 9.696