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

using model chemistry: PBEPBE/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 PBEPBE/6-31+G**
 hartrees
Energy at 0K-229.998443
Energy at 298.15K-230.005397
Nuclear repulsion energy129.347746
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 PBEPBE/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 3741 3699 0.00      
2 Ag 2934 2900 0.00      
3 Ag 1474 1457 0.00      
4 Ag 1427 1411 0.00      
5 Ag 1245 1230 0.00      
6 Ag 1050 1038 0.00      
7 Ag 963 952 0.00      
8 Ag 466 461 0.00      
9 Au 2993 2959 89.96      
10 Au 1182 1168 0.40      
11 Au 809 800 1.56      
12 Au 237 235 249.15      
13 Au 105 104 39.20      
14 Bg 2966 2932 0.00      
15 Bg 1260 1245 0.00      
16 Bg 1119 1106 0.00      
17 Bg 218 216 0.00      
18 Bu 3742 3699 58.90      
19 Bu 2939 2906 117.08      
20 Bu 1482 1466 6.19      
21 Bu 1350 1335 3.47      
22 Bu 1151 1137 68.45      
23 Bu 1036 1024 234.53      
24 Bu 285 282 21.59      

Unscaled Zero Point Vibrational Energy (zpe) 18085.7 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 17879.5 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 PBEPBE/6-31+G**
ABC
1.00065 0.13200 0.12211

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.440 0.622 0.000
C2 -0.440 -0.622 0.000
O3 0.440 -1.754 0.000
O4 -0.440 1.754 0.000
H5 -0.102 -2.562 0.000
H6 0.102 2.562 0.000
H7 -1.089 -0.607 0.898
H8 -1.089 -0.607 -0.898
H9 1.089 0.607 0.898
H10 1.089 0.607 -0.898

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.52392.37601.43373.22961.96872.15782.15781.10811.1081
C21.52391.43372.37601.96873.22961.10811.10812.15782.1578
O32.37601.43373.61660.97294.32872.11172.11172.60832.6083
O41.43372.37603.61664.32870.97292.60832.60832.11172.1117
H53.22961.96870.97294.32875.12732.36622.36623.50263.5026
H61.96873.22964.32870.97295.12733.50263.50262.36622.3662
H72.15781.10812.11172.60832.36623.50261.79602.49393.0733
H82.15781.10812.11172.60832.36623.50261.79603.07332.4939
H91.10812.15782.60832.11173.50262.36622.49393.07331.7960
H101.10812.15782.60832.11173.50262.36623.07332.49391.7960

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 106.863 C1 C2 H7 109.109
C1 C2 H8 109.109 C1 O4 H6 108.250
C2 C1 O4 106.863 C2 C1 H9 109.109
C2 C1 H10 109.109 C2 O3 H5 108.250
O3 C2 H7 111.717 O3 C2 H8 111.717
O4 C1 H9 111.717 O4 C1 H10 111.717
H7 C2 H8 108.270 H9 C1 H10 108.270
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.162      
2 C -0.162      
3 O -0.507      
4 O -0.507      
5 H 0.347      
6 H 0.347      
7 H 0.160      
8 H 0.160      
9 H 0.160      
10 H 0.160      


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
Primitive
 xyz
x -27.273 7.011 0.000
y 7.011 -19.260 0.000
z 0.000 0.000 -26.155
Traceless
 xyz
x -4.565 7.011 0.000
y 7.011 7.454 0.000
z 0.000 0.000 -2.889
Polar
3z2-r2-5.778
x2-y2-8.013
xy7.011
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.238 -0.127 0.000
y -0.127 5.957 0.000
z 0.000 0.000 4.717


<r2> (average value of r2) Å2
<r2> 97.009
(<r2>)1/2 9.849