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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-46.786598
Energy at 298.15K-46.793613
Nuclear repulsion energy75.177738
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/CEP-121G
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 3675 3582 0.00      
2 Ag 2988 2912 0.00      
3 Ag 1528 1489 0.00      
4 Ag 1469 1432 0.00      
5 Ag 1262 1230 0.00      
6 Ag 1029 1003 0.00      
7 Ag 976 951 0.00      
8 Ag 457 445 0.00      
9 Au 3068 2990 128.93      
10 Au 1197 1167 2.10      
11 Au 843 822 1.45      
12 Au 246 240 356.07      
13 Au 111 108 30.00      
14 Bg 3036 2959 0.00      
15 Bg 1295 1262 0.00      
16 Bg 1134 1105 0.00      
17 Bg 219 213 0.00      
18 Bu 3677 3584 14.32      
19 Bu 2992 2915 117.08      
20 Bu 1541 1502 5.83      
21 Bu 1392 1357 1.59      
22 Bu 1167 1137 97.18      
23 Bu 999 973 217.94      
24 Bu 282 275 30.24      

Unscaled Zero Point Vibrational Energy (zpe) 18292.0 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 17825.6 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 B3LYP/CEP-121G
ABC
0.98124 0.12833 0.11866

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.766 0.000
C2 0.000 -0.766 0.000
O3 1.416 -1.170 0.000
O4 -1.416 1.170 0.000
H5 1.494 -2.146 0.000
H6 -1.494 2.146 0.000
H7 -0.518 -1.136 0.896
H8 -0.518 -1.136 -0.896
H9 0.518 1.136 0.896
H10 0.518 1.136 -0.896

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.53202.39841.47233.27262.03362.16602.16601.09981.0998
C21.53201.47232.39842.03363.27261.09981.09982.16602.1660
O32.39841.47233.67330.97894.41142.13212.13212.63222.6322
O41.47232.39843.67334.41140.97892.63222.63222.13212.1321
H53.27262.03360.97894.41145.22922.42322.42323.53953.5395
H62.03363.27264.41140.97895.22923.53953.53952.42322.4232
H72.16601.09982.13212.63222.42323.53951.79292.49813.0749
H82.16601.09982.13212.63222.42323.53951.79293.07492.4981
H91.09982.16602.63222.13213.53952.42322.49813.07491.7929
H101.09982.16602.63222.13213.53952.42323.07492.49811.7929

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 105.924 C1 C2 H7 109.681
C1 C2 H8 109.681 C1 O4 H6 110.502
C2 C1 O4 105.924 C2 C1 H9 109.681
C2 C1 H10 109.681 C2 O3 H5 110.502
O3 C2 H7 111.153 O3 C2 H8 111.153
O4 C1 H9 111.153 O4 C1 H10 111.153
H7 C2 H8 109.196 H9 C1 H10 109.196
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.130      
2 C -0.130      
3 O -0.489      
4 O -0.489      
5 H 0.342      
6 H 0.342      
7 H 0.138      
8 H 0.138      
9 H 0.138      
10 H 0.138      


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 4.982 -0.539 0.000
y -0.539 5.338 0.000
z 0.000 0.000 3.929


<r2> (average value of r2) Å2
<r2> 83.143
(<r2>)1/2 9.118