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

using model chemistry: HF/3-21G*

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/3-21G*
 hartrees
Energy at 0K-227.652979
Energy at 298.15K-227.660324
Nuclear repulsion energy130.048896
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/3-21G*
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 3886 3508 0.00      
2 Ag 3211 2898 0.00      
3 Ag 1705 1539 0.00      
4 Ag 1606 1450 0.00      
5 Ag 1384 1249 0.00      
6 Ag 1133 1022 0.00      
7 Ag 1041 940 0.00      
8 Ag 496 447 0.00      
9 Au 3267 2949 121.49      
10 Au 1331 1202 5.04      
11 Au 936 844 3.68      
12 Au 281 254 384.71      
13 Au 151 136 9.23      
14 Bg 3236 2921 0.00      
15 Bg 1452 1310 0.00      
16 Bg 1248 1127 0.00      
17 Bg 272 246 0.00      
18 Bu 3887 3508 32.43      
19 Bu 3216 2903 77.22      
20 Bu 1717 1550 6.17      
21 Bu 1548 1397 7.80      
22 Bu 1283 1158 147.38      
23 Bu 1125 1015 191.26      
24 Bu 293 265 33.38      

Unscaled Zero Point Vibrational Energy (zpe) 19852.0 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 17918.4 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/3-21G*
ABC
1.00684 0.13382 0.12352

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.757 0.000
C2 0.000 -0.757 0.000
O3 1.389 -1.140 0.000
O4 -1.389 1.140 0.000
H5 1.486 -2.100 0.000
H6 -1.486 2.100 0.000
H7 -0.522 -1.112 0.880
H8 -0.522 -1.112 -0.880
H9 0.522 1.112 0.880
H10 0.522 1.112 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51472.35151.44063.22092.00292.13072.13071.08261.0826
C21.51471.44062.35152.00293.22091.08261.08262.13072.1307
O32.35151.44063.59380.96494.33192.10402.10402.56812.5681
O41.44062.35153.59384.33190.96492.56812.56812.10402.1040
H53.22092.00290.96494.33195.14572.40522.40523.46683.4668
H62.00293.22094.33190.96495.14573.46683.46682.40522.4052
H72.13071.08262.10402.56812.40523.46681.75932.45643.0215
H82.13071.08262.10402.56812.40523.46681.75933.02152.4564
H91.08262.13072.56812.10403.46682.40522.45643.02151.7593
H101.08262.13072.56812.10403.46682.40523.02152.45641.7593

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 105.413 C1 C2 H7 109.099
C1 C2 H8 109.099 C1 O4 H6 111.203
C2 C1 O4 105.413 C2 C1 H9 109.099
C2 C1 H10 109.099 C2 O3 H5 111.203
O3 C2 H7 112.220 O3 C2 H8 112.220
O4 C1 H9 112.220 O4 C1 H10 112.220
H7 C2 H8 108.682 H9 C1 H10 108.682
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.095 0.339    
2 C -0.095 0.339    
3 O -0.692 -0.786    
4 O -0.692 -0.786    
5 H 0.381 0.455    
6 H 0.381 0.455    
7 H 0.203 -0.004    
8 H 0.203 -0.004    
9 H 0.203 -0.004    
10 H 0.203 -0.004    


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 0.000 0.000 0.000 0.000
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 3.875 -0.533 0.000
y -0.533 4.348 0.000
z 0.000 0.000 3.070


<r2> (average value of r2) Å2
<r2> 95.365
(<r2>)1/2 9.766