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

using model chemistry: HF/TZVP

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/TZVP
 hartrees
Energy at 0K-229.021132
Energy at 298.15K-229.028493
HF Energy-229.021132
Nuclear repulsion energy131.561287
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/TZVP
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 4176 3794 0.00      
2 Ag 3165 2875 0.00      
3 Ag 1653 1502 0.00      
4 Ag 1627 1478 0.00      
5 Ag 1388 1261 0.00      
6 Ag 1187 1078 0.00      
7 Ag 1053 957 0.00      
8 Ag 514 467 0.00      
9 Au 3217 2923 127.29      
10 Au 1348 1225 5.83      
11 Au 900 818 4.03      
12 Au 266 242 292.15      
13 Au 144 131 31.35      
14 Bg 3187 2896 0.00      
15 Bg 1421 1291 0.00      
16 Bg 1267 1151 0.00      
17 Bg 254 231 0.00      
18 Bu 4176 3794 124.41      
19 Bu 3167 2878 121.41      
20 Bu 1662 1510 7.53      
21 Bu 1534 1394 10.85      
22 Bu 1276 1159 185.00      
23 Bu 1175 1067 214.00      
24 Bu 321 292 25.08      

Unscaled Zero Point Vibrational Energy (zpe) 20039.2 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 18207.6 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/TZVP
ABC
1.04397 0.13545 0.12547

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.430 0.622 0.000
C2 -0.430 -0.622 0.000
O3 0.430 -1.736 0.000
O4 -0.430 1.736 0.000
H5 -0.076 -2.528 0.000
H6 0.076 2.528 0.000
H7 -1.064 -0.628 0.880
H8 -1.064 -0.628 -0.880
H9 1.064 0.628 0.880
H10 1.064 0.628 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51172.35721.40743.18961.93852.13722.13721.08451.0845
C21.51171.40742.35721.93853.18961.08451.08452.13722.1372
O32.35721.40743.57630.94004.27782.05792.05792.60022.6002
O41.40742.35723.57634.27780.94002.60022.60022.05792.0579
H53.18961.93850.94004.27785.05742.31512.31513.46843.4684
H61.93853.18964.27780.94005.05743.46843.46842.31512.3151
H72.13721.08452.05792.60022.31513.46841.75922.47143.0335
H82.13721.08452.05792.60022.31513.46841.75923.03352.4714
H91.08452.13722.60022.05793.46842.31512.47143.03351.7592
H101.08452.13722.60022.05793.46842.31513.03352.47141.7592

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 107.656 C1 C2 H7 109.714
C1 C2 H8 109.714 C1 O4 H6 109.729
C2 C1 O4 107.656 C2 C1 H9 109.714
C2 C1 H10 109.714 C2 O3 H5 109.729
O3 C2 H7 110.680 O3 C2 H8 110.680
O4 C1 H9 110.680 O4 C1 H10 110.680
H7 C2 H8 108.391 H9 C1 H10 108.391
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.043      
2 C 0.043      
3 O -0.446      
4 O -0.446      
5 H 0.279      
6 H 0.279      
7 H 0.062      
8 H 0.062      
9 H 0.062      
10 H 0.062      


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 -26.697 7.028 0.000
y 7.028 -18.722 0.000
z 0.000 0.000 -25.261
Traceless
 xyz
x -4.705 7.028 0.000
y 7.028 7.257 0.000
z 0.000 0.000 -2.552
Polar
3z2-r2-5.103
x2-y2-7.975
xy7.028
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.352 0.007 0.000
y 0.007 5.081 0.000
z 0.000 0.000 3.986


<r2> (average value of r2) Å2
<r2> 94.359
(<r2>)1/2 9.714