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

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-229.994274
Energy at 298.15K-230.001427
HF Energy-229.792430
Nuclear repulsion energy130.274606
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 B2PLYP/6-31G*
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 3795 3602 0.00      
2 Ag 3047 2893 0.00      
3 Ag 1577 1496 0.00      
4 Ag 1528 1451 0.00      
5 Ag 1321 1253 0.00      
6 Ag 1106 1050 0.00      
7 Ag 1013 961 0.00      
8 Ag 485 460 0.00      
9 Au 3104 2946 122.25      
10 Au 1249 1185 2.34      
11 Au 853 810 3.50      
12 Au 251 238 262.42      
13 Au 133 126 27.24      
14 Bg 3078 2921 0.00      
15 Bg 1333 1265 0.00      
16 Bg 1189 1128 0.00      
17 Bg 245 232 0.00      
18 Bu 3796 3603 44.60      
19 Bu 3052 2897 104.54      
20 Bu 1587 1506 7.10      
21 Bu 1444 1371 12.04      
22 Bu 1216 1155 113.12      
23 Bu 1093 1038 203.36      
24 Bu 298 283 22.18      

Unscaled Zero Point Vibrational Energy (zpe) 18895.1 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 17935.2 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 B2PLYP/6-31G*
ABC
1.01335 0.13394 0.12383

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.438 0.619 0.000
C2 -0.438 -0.619 0.000
O3 0.438 -1.743 0.000
O4 -0.438 1.743 0.000
H5 -0.108 -2.543 0.000
H6 0.108 2.543 0.000
H7 -1.082 -0.604 0.888
H8 -1.082 -0.604 -0.888
H9 1.082 0.604 0.888
H10 1.082 0.604 -0.888

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.51602.36231.42483.20821.95162.14332.14331.09761.0976
C21.51601.42482.36231.95163.20821.09761.09762.14332.1433
O32.36231.42483.59480.96774.29852.09712.09712.59082.5908
O41.42482.36233.59484.29850.96772.59082.59082.09712.0971
H53.20821.95160.96774.29855.08962.34462.34463.47913.4791
H61.95163.20824.29850.96775.08963.47913.47912.34462.3446
H72.14331.09762.09712.59082.34463.47911.77602.47873.0493
H82.14331.09762.09712.59082.34463.47911.77603.04932.4787
H91.09762.14332.59082.09713.47912.34462.47873.04931.7760
H101.09762.14332.59082.09713.47912.34463.04932.47871.7760

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 106.846 C1 C2 H7 109.131
C1 C2 H8 109.131 C1 O4 H6 107.777
C2 C1 O4 106.846 C2 C1 H9 109.131
C2 C1 H10 109.131 C2 O3 H5 107.777
O3 C2 H7 111.835 O3 C2 H8 111.835
O4 C1 H9 111.835 O4 C1 H10 111.835
H7 C2 H8 108.011 H9 C1 H10 108.011
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.026      
2 C -0.026      
3 O -0.678      
4 O -0.678      
5 H 0.416      
6 H 0.416      
7 H 0.144      
8 H 0.144      
9 H 0.144      
10 H 0.144      


Electric dipole moments


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 4.148 0.058 0.000
y 0.058 5.082 0.000
z 0.000 0.000 3.656


<r2> (average value of r2) Å2
<r2> 95.203
(<r2>)1/2 9.757