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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-228.067153
Energy at 298.15K-228.074359
HF Energy-227.649526
Nuclear repulsion energy128.189359
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 MP2/3-21G*
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 3532 3360 0.00      
2 Ag 3071 2922 0.00      
3 Ag 1632 1553 0.00      
4 Ag 1523 1449 0.00      
5 Ag 1325 1260 0.00      
6 Ag 1035 985 0.00      
7 Ag 995 947 0.00      
8 Ag 465 442 0.00      
9 Au 3129 2977 111.72      
10 Au 1243 1182 1.66      
11 Au 897 854 3.46      
12 Au 281 268 316.75      
13 Au 138 131 9.51      
14 Bg 3102 2951 0.00      
15 Bg 1376 1309 0.00      
16 Bg 1182 1124 0.00      
17 Bg 280 266 0.00      
18 Bu 3533 3361 3.21      
19 Bu 3077 2927 68.14      
20 Bu 1644 1564 5.26      
21 Bu 1463 1392 3.38      
22 Bu 1230 1170 106.18      
23 Bu 1020 971 134.33      
24 Bu 272 259 29.10      

Unscaled Zero Point Vibrational Energy (zpe) 18722.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 17811.1 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 MP2/3-21G*
ABC
0.96984 0.13081 0.12052

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.763 0.000
C2 0.000 -0.763 0.000
O3 1.422 -1.139 0.000
O4 -1.422 1.139 0.000
H5 1.471 -2.129 0.000
H6 -1.471 2.129 0.000
H7 -0.534 -1.116 0.890
H8 -0.534 -1.116 -0.890
H9 0.534 1.116 0.890
H10 0.534 1.116 -0.890

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.52572.37511.47123.24482.00782.14652.14651.09651.0965
C21.52571.47122.37512.00783.24481.09651.09652.14652.1465
O32.37511.47123.64460.99104.36522.14962.14962.58202.5820
O41.47122.37513.64464.36520.99102.58202.58202.14962.1496
H53.24482.00780.99104.36525.17612.41692.41693.49293.4929
H62.00783.24484.36520.99105.17613.49293.49292.41692.4169
H72.14651.09652.14962.58202.41693.49291.78002.47463.0483
H82.14651.09652.14962.58202.41693.49291.78003.04832.4746
H91.09652.14652.58202.14963.49292.41692.47463.04831.7800
H101.09652.14652.58202.14963.49292.41693.04832.47461.7800

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 104.827 C1 C2 H7 108.783
C1 C2 H8 108.783 C1 O4 H6 107.664
C2 C1 O4 104.827 C2 C1 H9 108.783
C2 C1 H10 108.783 C2 O3 H5 107.664
O3 C2 H7 112.877 O3 C2 H8 112.877
O4 C1 H9 112.877 O4 C1 H10 112.877
H7 C2 H8 108.516 H9 C1 H10 108.516
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability