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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-230.150455
Energy at 298.15K-230.157601
Nuclear repulsion energy130.467553
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3811 3646 0.00      
2 Ag 3009 2878 0.00      
3 Ag 1552 1485 0.00      
4 Ag 1510 1445 0.00      
5 Ag 1312 1255 0.00      
6 Ag 1118 1069 0.00      
7 Ag 1003 960 0.00      
8 Ag 483 462 0.00      
9 Au 3064 2931 131.42      
10 Au 1239 1185 1.85      
11 Au 841 805 3.03      
12 Au 258 247 265.72      
13 Au 129 123 24.52      
14 Bg 3036 2904 0.00      
15 Bg 1316 1259 0.00      
16 Bg 1175 1124 0.00      
17 Bg 249 239 0.00      
18 Bu 3811 3646 46.44      
19 Bu 3014 2883 117.56      
20 Bu 1562 1495 7.23      
21 Bu 1430 1368 12.36      
22 Bu 1209 1156 98.34      
23 Bu 1108 1060 221.38      
24 Bu 293 280 21.33      

Unscaled Zero Point Vibrational Energy (zpe) 18765.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 17952.4 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 B3PW91/6-31G*
ABC
1.01840 0.13418 0.12412

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

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 1.353 -1.177 0.000
O4 -1.353 1.177 0.000
H5 1.363 -2.143 0.000
H6 -1.363 2.143 0.000
H7 -0.544 -1.114 0.889
H8 -0.544 -1.114 -0.889
H9 0.544 1.114 0.889
H10 0.544 1.114 -0.889

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51682.36101.41583.20531.94272.14302.14301.10131.1013
C21.51681.41582.36101.94273.20531.10131.10132.14302.1430
O32.36101.41583.58560.96594.28872.09532.09532.58702.5870
O41.41582.36103.58564.28870.96592.58702.58702.09532.0953
H53.20531.94270.96594.28875.07892.34192.34193.47393.4739
H61.94273.20534.28870.96595.07893.47393.47392.34192.3419
H72.14301.10132.09532.58702.34193.47391.77832.47943.0512
H82.14301.10132.09532.58702.34193.47391.77833.05122.4794
H91.10132.14302.58702.09533.47392.34192.47943.05121.7783
H101.10132.14302.58702.09533.47392.34193.05122.47941.7783

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 107.189 C1 C2 H7 108.844
C1 C2 H8 108.844 C1 O4 H6 107.817
C2 C1 O4 107.189 C2 C1 H9 108.844
C2 C1 H10 108.844 C2 O3 H5 107.817
O3 C2 H7 112.102 O3 C2 H8 112.102
O4 C1 H9 112.102 O4 C1 H10 112.102
H7 C2 H8 107.683 H9 C1 H10 107.683
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.088     0.166
2 C -0.088     0.173
3 O -0.632     -0.632
4 O -0.632     -0.632
5 H 0.410     0.406
6 H 0.410     0.407
7 H 0.155     0.027
8 H 0.155     0.027
9 H 0.155     0.029
10 H 0.155     0.029


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 0.001 0.001 0.000 0.001


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> 94.875
(<r2>)1/2 9.740