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

using model chemistry: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-229.865066
Energy at 298.15K-229.872123
HF Energy-229.035125
Nuclear repulsion energy130.711401
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/Def2TZVPP
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 3883 3695 0.00      
2 Ag 3064 2915 0.00      
3 Ag 1538 1463 0.00      
4 Ag 1496 1424 0.00      
5 Ag 1294 1231 0.00      
6 Ag 1102 1049 0.00      
7 Ag 1015 966 0.00      
8 Ag 483 459 0.00      
9 Au 3133 2981 67.55      
10 Au 1239 1179 1.47      
11 Au 841 800 1.94      
12 Au 232 221 204.29      
13 Au 116 110 45.40      
14 Bg 3107 2957 0.00      
15 Bg 1321 1257 0.00      
16 Bg 1173 1116 0.00      
17 Bg 213 203 0.00      
18 Bu 3884 3695 92.29      
19 Bu 3070 2921 84.34      
20 Bu 1549 1474 5.27      
21 Bu 1419 1350 7.31      
22 Bu 1199 1140 75.07      
23 Bu 1084 1032 219.22      
24 Bu 292 278 20.02      

Unscaled Zero Point Vibrational Energy (zpe) 18872.7 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 17957.3 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 MP2/Def2TZVPP
ABC
1.02095 0.13471 0.12457

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.438 0.615 0.000
C2 -0.438 -0.615 0.000
O3 0.438 -1.737 0.000
O4 -0.438 1.737 0.000
H5 -0.103 -2.530 0.000
H6 0.103 2.530 0.000
H7 -1.075 -0.602 0.886
H8 -1.075 -0.602 -0.886
H9 1.075 0.602 0.886
H10 1.075 0.602 -0.886

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9 H10
C11.50922.35141.42263.19051.94362.13372.13371.09151.0915
C21.50921.42262.35141.94363.19051.09151.09152.13372.1337
O32.35141.42263.58170.95974.27922.08832.08832.58042.5804
O41.42262.35143.58174.27920.95972.58042.58042.08832.0883
H53.19051.94360.95974.27925.06322.33372.33373.46083.4608
H61.94363.19054.27920.95975.06323.46083.46082.33372.3337
H72.13371.09152.08832.58042.33373.46081.77122.46453.0349
H82.13371.09152.08832.58042.33373.46081.77123.03492.4645
H91.09152.13372.58042.08833.46082.33372.46453.03491.7712
H101.09152.13372.58042.08833.46082.33373.03492.46451.7712

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 106.609 C1 C2 H7 109.206
C1 C2 H8 109.206 C1 O4 H6 107.757
C2 C1 O4 106.609 C2 C1 H9 109.206
C2 C1 H10 109.206 C2 O3 H5 107.757
O3 C2 H7 111.654 O3 C2 H8 111.654
O4 C1 H9 111.654 O4 C1 H10 111.654
H7 C2 H8 108.459 H9 C1 H10 108.459
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability