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All results from a given calculation for C2H4O (Ethylene oxide)

using model chemistry: MP2=FULL/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-153.568787
Energy at 298.15K 
HF Energy-152.928982
Nuclear repulsion energy75.478390
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=FULL/daug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3163 3163 13.93 228.47 0.06 0.11
2 A1 1559 1559 1.71 2.71 0.27 0.43
3 A1 1319 1319 11.96 30.82 0.10 0.18
4 A1 1152 1152 0.35 4.42 0.12 0.22
5 A1 909 909 69.20 7.42 0.75 0.86
6 A2 3242 3242 0.00 92.57 0.75 0.86
7 A2 1186 1186 0.00 0.80 0.75 0.86
8 A2 1059 1059 0.00 0.01 0.75 0.86
9 B1 3257 3257 22.71 18.45 0.75 0.86
10 B1 1182 1182 3.73 2.85 0.75 0.86
11 B1 829 829 0.31 2.17 0.75 0.86
12 B2 3155 3155 23.26 8.88 0.75 0.86
13 B2 1523 1523 0.25 2.96 0.75 0.86
14 B2 1166 1166 0.32 0.17 0.75 0.86
15 B2 851 851 8.21 3.43 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12775.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12775.4 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=FULL/daug-cc-pVTZ
ABC
0.85429 0.74952 0.47572

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.855
C2 0.000 0.729 -0.375
C3 0.000 -0.729 -0.375
H4 0.918 1.256 -0.587
H5 -0.918 1.256 -0.587
H6 -0.918 -1.256 -0.587
H7 0.918 -1.256 -0.587

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.42961.42962.12142.12142.12142.1214
C21.42961.45731.07931.07932.19642.1964
C31.42961.45732.19642.19641.07931.0793
H42.12141.07932.19641.83523.11022.5111
H52.12141.07932.19641.83522.51113.1102
H62.12142.19641.07933.11022.51111.8352
H72.12142.19641.07932.51113.11021.8352

picture of Ethylene oxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 59.357 O1 C2 H4 114.741
O1 C2 H5 114.741 O1 C3 C2 59.357
O1 C3 H6 114.741 O1 C3 H7 114.741
C2 O1 C3 61.286 C2 C3 H6 119.223
C2 C3 H7 119.223 C3 C2 H4 119.223
C3 C2 H5 119.223 H4 C2 H5 116.456
H6 C3 H7 116.456
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability