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

using model chemistry: B3LYP/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/CEP-121G*
 hartrees
Energy at 0K-46.854091
Energy at 298.15K-46.861128
Nuclear repulsion energy75.996722
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 B3LYP/CEP-121G*
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 3795 3679 0.00      
2 Ag 2987 2895 0.00      
3 Ag 1527 1480 0.00      
4 Ag 1488 1442 0.00      
5 Ag 1290 1250 0.00      
6 Ag 1068 1036 0.00      
7 Ag 977 947 0.00      
8 Ag 468 453 0.00      
9 Au 3046 2953 143.38      
10 Au 1219 1182 1.74      
11 Au 831 806 3.60      
12 Au 242 235 264.85      
13 Au 118 114 29.15      
14 Bg 3016 2924 0.00      
15 Bg 1299 1259 0.00      
16 Bg 1152 1116 0.00      
17 Bg 226 219 0.00      
18 Bu 3796 3680 30.85      
19 Bu 2991 2900 141.03      
20 Bu 1540 1493 7.11      
21 Bu 1406 1363 6.79      
22 Bu 1189 1153 133.14      
23 Bu 1056 1023 210.18      
24 Bu 286 277 22.65      

Unscaled Zero Point Vibrational Energy (zpe) 18505.4 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 17939.1 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 B3LYP/CEP-121G*
ABC
1.00060 0.13103 0.12122

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.765 0.000
C2 0.000 -0.765 0.000
O3 1.376 -1.185 0.000
O4 -1.376 1.185 0.000
H5 1.391 -2.154 0.000
H6 -1.391 2.154 0.000
H7 -0.533 -1.127 0.894
H8 -0.533 -1.127 -0.894
H9 0.533 1.127 0.894
H10 0.533 1.127 -0.894

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.53082.38681.43883.23321.96482.15982.15981.10181.1018
C21.53081.43882.38681.96483.23321.10181.10182.15982.1598
O32.38681.43883.63190.96914.33582.10932.10932.61792.6179
O41.43882.38683.63194.33580.96912.61792.61792.10932.1093
H53.23321.96480.96914.33585.12692.35652.35653.50663.5066
H61.96483.23324.33580.96915.12693.50663.50662.35652.3565
H72.15981.10182.10932.61792.35653.50661.78742.49393.0683
H82.15981.10182.10932.61792.35653.50661.78743.06832.4939
H91.10182.15982.61792.10933.50662.35652.49393.06831.7874
H101.10182.15982.61792.10933.50662.35653.06832.49391.7874

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 106.938 C1 C2 H7 109.168
C1 C2 H8 109.168 C1 O4 H6 107.772
C2 C1 O4 106.938 C2 C1 H9 109.168
C2 C1 H10 109.168 C2 O3 H5 107.772
O3 C2 H7 111.554 O3 C2 H8 111.554
O4 C1 H9 111.554 O4 C1 H10 111.554
H7 C2 H8 108.410 H9 C1 H10 108.410
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.128      
2 C -0.128      
3 O -0.559      
4 O -0.559      
5 H 0.406      
6 H 0.406      
7 H 0.140      
8 H 0.140      
9 H 0.140      
10 H 0.140      


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 4.984 -0.391 0.000
y -0.391 5.416 0.000
z 0.000 0.000 4.209


<r2> (average value of r2) Å2
<r2> 81.554
(<r2>)1/2 9.031