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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at G4
 hartrees
Energy at 0K-230.128392
Energy at 298.15K-230.135757
HF Energy-230.264605
Nuclear repulsion energy130.339966
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 B3LYP/6-31G(2df,p)
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 3841 3706 0.00      
2 Ag 2979 2874 0.00      
3 Ag 1525 1472 0.00      
4 Ag 1489 1437 0.00      
5 Ag 1294 1249 0.00      
6 Ag 1096 1057 0.00      
7 Ag 987 953 0.00      
8 Ag 480 463 0.00      
9 Au 3030 2924 117.04      
10 Au 1222 1179 2.41      
11 Au 832 803 2.40      
12 Au 242 234 213.94      
13 Au 118 114 23.31      
14 Bg 3001 2896 0.00      
15 Bg 1300 1254 0.00      
16 Bg 1166 1125 0.00      
17 Bg 233 225 0.00      
18 Bu 3842 3707 50.61      
19 Bu 2984 2880 110.29      
20 Bu 1537 1483 5.29      
21 Bu 1421 1371 15.48      
22 Bu 1198 1156 82.26      
23 Bu 1083 1045 215.24      
24 Bu 289 278 17.07      

Unscaled Zero Point Vibrational Energy (zpe) 18592.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 17942.1 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 B3LYP/6-31G(2df,p)
ABC
1.01711 0.13369 0.12367

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.761 0.000
C2 0.000 -0.761 0.000
O3 1.354 -1.180 0.000
O4 -1.354 1.180 0.000
H5 1.370 -2.141 0.000
H6 -1.370 2.141 0.000
H7 -0.544 -1.117 0.888
H8 -0.544 -1.117 -0.888
H9 0.544 1.117 0.888
H10 0.544 1.117 -0.888

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.52112.36621.41733.20861.94472.14702.14701.10071.1007
C21.52111.41732.36621.94473.20861.10071.10072.14702.1470
O32.36621.41733.59190.96094.29512.09622.09622.59252.5925
O41.41732.36623.59194.29510.96092.59252.59252.09622.0962
H53.20861.94470.96094.29515.08332.34522.34523.47633.4763
H61.94473.20864.29510.96095.08333.47633.47632.34522.3452
H72.14701.10072.09622.59252.34523.47631.77592.48493.0543
H82.14701.10072.09622.59252.34523.47631.77593.05432.4849
H91.10072.14702.59252.09623.47632.34522.48493.05431.7759
H101.10072.14702.59252.09623.47632.34523.05432.48491.7759

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 107.301 C1 C2 H7 108.641
C1 C2 H8 108.641 C1 O4 H6 108.718
C2 C1 O4 107.301 C2 C1 H9 108.641
C2 C1 H10 108.641 C2 O3 H5 108.718
O3 C2 H7 112.296 O3 C2 H8 112.296
O4 C1 H9 112.296 O4 C1 H10 112.296
H7 C2 H8 107.564 H9 C1 H10 107.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.060      
2 C -0.060      
3 O -0.421      
4 O -0.421      
5 H 0.290      
6 H 0.290      
7 H 0.095      
8 H 0.095      
9 H 0.095      
10 H 0.095      


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> 95.207
(<r2>)1/2 9.757