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

using model chemistry: HF/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-229.037093
Energy at 298.15K-229.044419
HF Energy-229.037093
Nuclear repulsion energy131.707697
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/Def2TZVPP
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 4191 3798 0.00      
2 Ag 3154 2859 0.00      
3 Ag 1651 1496 0.00      
4 Ag 1621 1469 0.00      
5 Ag 1389 1259 0.00      
6 Ag 1190 1079 0.00      
7 Ag 1055 956 0.00      
8 Ag 515 467 0.00      
9 Au 3204 2904 124.40      
10 Au 1344 1218 5.01      
11 Au 891 808 2.86      
12 Au 255 231 252.96      
13 Au 146 132 32.05      
14 Bg 3173 2876 0.00      
15 Bg 1419 1286 0.00      
16 Bg 1265 1147 0.00      
17 Bg 244 221 0.00      
18 Bu 4191 3798 133.31      
19 Bu 3157 2862 123.88      
20 Bu 1659 1504 6.50      
21 Bu 1535 1391 16.34      
22 Bu 1279 1159 169.50      
23 Bu 1180 1069 220.43      
24 Bu 321 291 21.59      

Unscaled Zero Point Vibrational Energy (zpe) 20013.3 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 18140.1 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 HF/Def2TZVPP
ABC
1.04675 0.13568 0.12568

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.429 0.622 0.000
C2 -0.429 -0.622 0.000
O3 0.429 -1.735 0.000
O4 -0.429 1.735 0.000
H5 -0.073 -2.526 0.000
H6 0.073 2.526 0.000
H7 -1.064 -0.629 0.878
H8 -1.064 -0.629 -0.878
H9 1.064 0.629 0.878
H10 1.064 0.629 -0.878

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51162.35661.40563.18801.93722.13712.13711.08391.0839
C21.51161.40562.35661.93723.18801.08391.08392.13712.1371
O32.35661.40563.57410.93774.27572.05562.05562.60022.6002
O41.40562.35663.57414.27570.93772.60022.60022.05562.0556
H53.18801.93720.93774.27575.05452.31372.31373.46703.4670
H61.93723.18804.27570.93775.05453.46703.46702.31372.3137
H72.13711.08392.05562.60022.31373.46701.75702.47233.0330
H82.13711.08392.05562.60022.31373.46701.75703.03302.4723
H91.08392.13712.60022.05563.46702.31372.47233.03301.7570
H101.08392.13712.60022.05563.46702.31373.03302.47231.7570

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 107.714 C1 C2 H7 109.756
C1 C2 H8 109.756 C1 O4 H6 109.916
C2 C1 O4 107.714 C2 C1 H9 109.756
C2 C1 H10 109.756 C2 O3 H5 109.916
O3 C2 H7 110.659 O3 C2 H8 110.659
O4 C1 H9 110.659 O4 C1 H10 110.659
H7 C2 H8 108.294 H9 C1 H10 108.294
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.139      
2 C 0.139      
3 O -0.422      
4 O -0.422      
5 H 0.202      
6 H 0.202      
7 H 0.041      
8 H 0.041      
9 H 0.041      
10 H 0.041      


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 -26.470 6.485 0.000
y 6.485 -18.776 0.000
z 0.000 0.000 -25.202
Traceless
 xyz
x -4.481 6.485 0.000
y 6.485 7.060 0.000
z 0.000 0.000 -2.579
Polar
3z2-r2-5.158
x2-y2-7.694
xy6.485
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.608 0.009 0.000
y 0.009 5.400 0.000
z 0.000 0.000 4.186


<r2> (average value of r2) Å2
<r2> 94.181
(<r2>)1/2 9.705