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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-230.134967
Energy at 298.15K-230.142128
Nuclear repulsion energy130.939885
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 B1B95/6-31G*
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 3836 3642 0.00      
2 Ag 3035 2881 0.00      
3 Ag 1557 1478 0.00      
4 Ag 1518 1441 0.00      
5 Ag 1314 1247 0.00      
6 Ag 1132 1075 0.00      
7 Ag 1011 960 0.00      
8 Ag 485 460 0.00      
9 Au 3092 2935 125.38      
10 Au 1243 1180 2.16      
11 Au 842 800 3.49      
12 Au 261 247 267.29      
13 Au 131 124 24.26      
14 Bg 3064 2909 0.00      
15 Bg 1320 1253 0.00      
16 Bg 1178 1119 0.00      
17 Bg 253 240 0.00      
18 Bu 3837 3642 52.25      
19 Bu 3040 2886 112.44      
20 Bu 1568 1488 7.45      
21 Bu 1433 1360 12.74      
22 Bu 1207 1146 97.76      
23 Bu 1126 1069 227.99      
24 Bu 289 274 21.20      

Unscaled Zero Point Vibrational Energy (zpe) 18885.3 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 17927.8 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 B1B95/6-31G*
ABC
1.02398 0.13530 0.12514

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.434 0.619 0.000
C2 -0.434 -0.619 0.000
O3 0.434 -1.732 0.000
O4 -0.434 1.732 0.000
H5 -0.106 -2.530 0.000
H6 0.106 2.530 0.000
H7 -1.081 -0.598 0.887
H8 -1.081 -0.598 -0.887
H9 1.081 0.598 0.887
H10 1.081 0.598 -0.887

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51132.35061.41073.19441.93862.13552.13551.09811.0981
C21.51131.41072.35061.93863.19441.09811.09812.13552.1355
O32.35061.41073.57020.96324.27382.08912.08912.57552.5755
O41.41072.35063.57024.27380.96322.57552.57552.08912.0891
H53.19441.93860.96324.27385.06362.33822.33823.46083.4608
H61.93863.19444.27380.96325.06363.46083.46082.33822.3382
H72.13551.09812.08912.57552.33823.46081.77382.47023.0411
H82.13551.09812.08912.57552.33823.46081.77383.04112.4702
H91.09812.13552.57552.08913.46082.33822.47023.04111.7738
H101.09812.13552.57552.08913.46082.33823.04112.47021.7738

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 107.064 C1 C2 H7 108.817
C1 C2 H8 108.817 C1 O4 H6 108.014
C2 C1 O4 107.064 C2 C1 H9 108.817
C2 C1 H10 108.817 C2 O3 H5 108.014
O3 C2 H7 112.158 O3 C2 H8 112.158
O4 C1 H9 112.158 O4 C1 H10 112.158
H7 C2 H8 107.744 H9 C1 H10 107.744
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.075      
2 C -0.075      
3 O -0.636      
4 O -0.636      
5 H 0.410      
6 H 0.410      
7 H 0.151      
8 H 0.151      
9 H 0.151      
10 H 0.151      


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 -25.969 6.326 0.000
y 6.326 -17.835 0.000
z 0.000 0.000 -25.011
Traceless
 xyz
x -4.546 6.326 0.000
y 6.326 7.655 0.000
z 0.000 0.000 -3.109
Polar
3z2-r2-6.218
x2-y2-8.134
xy6.326
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.178 0.077 0.000
y 0.077 5.065 0.000
z 0.000 0.000 3.695


<r2> (average value of r2) Å2
<r2> 94.232
(<r2>)1/2 9.707