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

using model chemistry: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-230.183159
Energy at 298.15K-230.190220
Nuclear repulsion energy130.324848
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 B3PW91/6-31+G**
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 3888 3733 0.00      
2 Ag 3016 2896 0.00      
3 Ag 1523 1463 0.00      
4 Ag 1479 1420 0.00      
5 Ag 1280 1229 0.00      
6 Ag 1100 1056 0.00      
7 Ag 991 952 0.00      
8 Ag 480 461 0.00      
9 Au 3079 2956 90.81      
10 Au 1228 1179 1.20      
11 Au 832 799 1.86      
12 Au 241 231 269.75      
13 Au 116 112 36.74      
14 Bg 3052 2930 0.00      
15 Bg 1303 1251 0.00      
16 Bg 1159 1112 0.00      
17 Bg 224 215 0.00      
18 Bu 3888 3733 80.49      
19 Bu 3022 2901 112.66      
20 Bu 1531 1470 6.79      
21 Bu 1396 1341 4.88      
22 Bu 1181 1134 80.85      
23 Bu 1088 1045 244.78      
24 Bu 293 281 23.16      

Unscaled Zero Point Vibrational Energy (zpe) 18695.1 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 17949.2 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 B3PW91/6-31+G**
ABC
1.01859 0.13372 0.12375

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.758 0.000
C2 0.000 -0.758 0.000
O3 1.358 -1.175 0.000
O4 -1.358 1.175 0.000
H5 1.391 -2.136 0.000
H6 -1.391 2.136 0.000
H7 -0.534 -1.118 0.891
H8 -0.534 -1.118 -0.891
H9 0.534 1.118 0.891
H10 0.534 1.118 -0.891

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51652.36221.42043.21141.95802.14492.14491.09921.0992
C21.51651.42042.36221.95803.21141.09921.09922.14492.1449
O32.36221.42043.59110.96234.30342.09212.09212.59432.5943
O41.42042.36223.59114.30340.96232.59432.59432.09212.0921
H53.21141.95800.96234.30345.09852.35272.35273.48153.4815
H61.95803.21144.30340.96235.09853.48153.48152.35272.3527
H72.14491.09922.09212.59432.35273.48151.78132.47893.0526
H82.14491.09922.09212.59432.35273.48151.78133.05262.4789
H91.09922.14492.59432.09213.48152.35272.47893.05261.7813
H101.09922.14492.59432.09213.48152.35273.05262.47891.7813

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 107.041 C1 C2 H7 109.130
C1 C2 H8 109.130 C1 O4 H6 109.004
C2 C1 O4 107.041 C2 C1 H9 109.130
C2 C1 H10 109.130 C2 O3 H5 109.004
O3 C2 H7 111.623 O3 C2 H8 111.623
O4 C1 H9 111.623 O4 C1 H10 111.623
H7 C2 H8 108.246 H9 C1 H10 108.246
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.122      
2 C -0.122      
3 O -0.537      
4 O -0.537      
5 H 0.354      
6 H 0.354      
7 H 0.152      
8 H 0.152      
9 H 0.152      
10 H 0.152      


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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 95.676
(<r2>)1/2 9.781