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

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-225.958533
Energy at 298.15K-225.965784
Nuclear repulsion energy128.635872
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/STO-3G
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 4233 3457 0.00      
2 Ag 3549 2898 0.00      
3 Ag 1837 1500 0.00      
4 Ag 1809 1477 0.00      
5 Ag 1598 1305 0.00      
6 Ag 1329 1085 0.00      
7 Ag 1147 936 0.00      
8 Ag 500 408 0.00      
9 Au 3669 2996 19.67      
10 Au 1398 1141 16.05      
11 Au 940 767 2.76      
12 Au 337 275 172.97      
13 Au 100 82 6.42      
14 Bg 3657 2986 0.00      
15 Bg 1518 1240 0.00      
16 Bg 1288 1052 0.00      
17 Bg 347 284 0.00      
18 Bu 4235 3458 45.87      
19 Bu 3551 2899 12.36      
20 Bu 1845 1506 3.00      
21 Bu 1727 1410 20.19      
22 Bu 1446 1180 75.35      
23 Bu 1328 1084 9.77      
24 Bu 309 252 15.08      

Unscaled Zero Point Vibrational Energy (zpe) 21847.6 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 17838.5 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 HF/STO-3G
ABC
1.00135 0.12932 0.11966

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.438 0.639 0.000
C2 -0.438 -0.639 0.000
O3 0.438 -1.775 0.000
O4 -0.438 1.775 0.000
H5 -0.178 -2.551 0.000
H6 0.178 2.551 0.000
H7 -1.086 -0.627 0.884
H8 -1.086 -0.627 -0.884
H9 1.086 0.627 0.884
H10 1.086 0.627 -0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.54952.41421.43473.24901.92982.17012.17011.09671.0967
C21.54951.43472.41421.92983.24901.09671.09672.17012.1701
O32.41421.43473.65690.99054.33422.10342.10342.64082.6408
O41.43472.41423.65694.33420.99052.64082.64082.10342.1034
H53.24901.92980.99054.33425.11472.30442.30443.53293.5329
H61.92983.24904.33420.99055.11473.53293.53292.30442.3044
H72.17011.09672.10342.64082.30443.53291.76872.50903.0697
H82.17011.09672.10342.64082.30443.53291.76873.06972.5090
H91.09672.17012.64082.10343.53292.30442.50903.06971.7687
H101.09672.17012.64082.10343.53292.30443.06972.50901.7687

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 107.936 C1 C2 H7 108.990
C1 C2 H8 108.990 C1 O4 H6 103.942
C2 C1 O4 107.936 C2 C1 H9 108.990
C2 C1 H10 108.990 C2 O3 H5 103.942
O3 C2 H7 111.692 O3 C2 H8 111.692
O4 C1 H9 111.692 O4 C1 H10 111.692
H7 C2 H8 107.489 H9 C1 H10 107.489
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.003      
2 C 0.003      
3 O -0.288      
4 O -0.288      
5 H 0.175      
6 H 0.175      
7 H 0.055      
8 H 0.055      
9 H 0.055      
10 H 0.055      


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 -23.881 5.681 0.000
y 5.681 -19.397 0.000
z 0.000 0.000 -22.976
Traceless
 xyz
x -2.695 5.681 0.000
y 5.681 4.032 0.000
z 0.000 0.000 -1.337
Polar
3z2-r2-2.675
x2-y2-4.485
xy5.681
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.071 0.163 0.000
y 0.163 3.433 0.000
z 0.000 0.000 1.641


<r2> (average value of r2) Å2
<r2> 96.991
(<r2>)1/2 9.848