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

using model chemistry: HF/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-228.974442
Energy at 298.15K-228.981835
Nuclear repulsion energy131.246800
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/aug-cc-pVDZ
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 4190 3815 0.00      
2 Ag 3170 2887 0.00      
3 Ag 1634 1488 0.00      
4 Ag 1607 1463 0.00      
5 Ag 1393 1268 0.00      
6 Ag 1186 1080 0.00      
7 Ag 1062 967 0.00      
8 Ag 514 468 0.00      
9 Au 3227 2938 112.95      
10 Au 1330 1211 4.05      
11 Au 888 809 2.49      
12 Au 274 250 251.23      
13 Au 144 131 29.04      
14 Bg 3198 2912 0.00      
15 Bg 1407 1281 0.00      
16 Bg 1252 1140 0.00      
17 Bg 272 247 0.00      
18 Bu 4190 3815 133.70      
19 Bu 3172 2888 121.33      
20 Bu 1636 1490 6.46      
21 Bu 1516 1380 20.10      
22 Bu 1282 1168 167.67      
23 Bu 1170 1066 208.62      
24 Bu 321 292 22.04      

Unscaled Zero Point Vibrational Energy (zpe) 20015.7 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 18226.3 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/aug-cc-pVDZ
ABC
1.03597 0.13501 0.12504

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.757 0.000
C2 0.000 -0.757 0.000
O3 1.344 -1.176 0.000
O4 -1.344 1.176 0.000
H5 1.391 -2.116 0.000
H6 -1.391 2.116 0.000
H7 -0.526 -1.119 0.885
H8 -0.526 -1.119 -0.885
H9 0.526 1.119 0.885
H10 0.526 1.119 -0.885

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51312.35361.40773.19161.94502.13972.13971.09191.0919
C21.51311.40772.35361.94503.19161.09191.09192.13972.1397
O32.35361.40773.57110.94164.27952.07012.07012.59172.5917
O41.40772.35363.57114.27950.94162.59172.59172.07012.0701
H53.19161.94500.94164.27955.06452.33552.33553.46353.4635
H61.94503.19164.27950.94165.06453.46353.46352.33552.3355
H72.13971.09192.07012.59172.33553.46351.77082.47313.0417
H82.13971.09192.07012.59172.33553.46351.77083.04172.4731
H91.09192.13972.59172.07013.46352.33552.47313.04171.7708
H101.09192.13972.59172.07013.46352.33553.04172.47311.7708

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 107.316 C1 C2 H7 109.381
C1 C2 H8 109.381 C1 O4 H6 110.182
C2 C1 O4 107.316 C2 C1 H9 109.381
C2 C1 H10 109.381 C2 O3 H5 110.182
O3 C2 H7 111.189 O3 C2 H8 111.189
O4 C1 H9 111.189 O4 C1 H10 111.189
H7 C2 H8 108.359 H9 C1 H10 108.359
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.777      
2 C 0.777      
3 O -0.642      
4 O -0.642      
5 H 0.101      
6 H 0.101      
7 H -0.118      
8 H -0.118      
9 H -0.118      
10 H -0.118      


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 5.266 -0.416 0.000
y -0.416 5.449 0.000
z 0.000 0.000 4.498


<r2> (average value of r2) Å2
<r2> 94.815
(<r2>)1/2 9.737