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

using model chemistry: B2PLYP=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-153.636321
Energy at 298.15K 
HF Energy-153.480317
Nuclear repulsion energy75.158209
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=FULL/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 A1 3148 3148 11.59 190.19 0.09 0.17
2 A1 1582 1582 3.53 3.88 0.75 0.86
3 A1 1321 1321 9.80 22.56 0.16 0.27
4 A1 1175 1175 0.12 3.21 0.39 0.56
5 A1 908 908 56.40 11.40 0.75 0.86
6 A2 3227 3227 0.00 104.35 0.75 0.86
7 A2 1199 1199 0.00 4.90 0.75 0.86
8 A2 1057 1057 0.00 0.13 0.75 0.86
9 B1 3242 3242 55.05 14.77 0.75 0.86
10 B1 1181 1181 2.85 14.86 0.75 0.86
11 B1 830 830 0.10 8.71 0.75 0.86
12 B2 3139 3139 36.66 9.23 0.75 0.86
13 B2 1543 1543 1.03 6.65 0.75 0.86
14 B2 1161 1161 2.00 3.62 0.75 0.86
15 B2 860 860 11.35 4.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12785.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12785.8 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=FULL/6-31G**
ABC
0.85134 0.74021 0.47105

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.858
C2 0.000 0.733 -0.373
C3 0.000 -0.733 -0.373
H4 0.918 1.269 -0.595
H5 -0.918 1.269 -0.595
H6 -0.918 -1.269 -0.595
H7 0.918 -1.269 -0.595

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43231.43232.13642.13642.13642.1364
C21.43231.46551.08591.08592.21342.2134
C31.43231.46552.21342.21341.08591.0859
H42.13641.08592.21341.83513.13242.5385
H52.13641.08592.21341.83512.53853.1324
H62.13642.21341.08593.13242.53851.8351
H72.13642.21341.08592.53853.13241.8351

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 59.231 O1 C2 H4 115.383
O1 C2 H5 115.383 O1 C3 C2 59.231
O1 C3 H6 115.383 O1 C3 H7 115.383
C2 O1 C3 61.538 C2 C3 H6 119.609
C2 C3 H7 119.609 C3 C2 H4 119.609
C3 C2 H5 119.609 H4 C2 H5 115.336
H6 C3 H7 115.336
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability