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

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

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=FULLultrafine/6-31+G**
 hartrees
Energy at 0K-153.645945
Energy at 298.15K 
HF Energy-153.487012
Nuclear repulsion energy75.025306
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=FULLultrafine/6-31+G**
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 3153 3153 13.71 208.98 0.10 0.17
2 A1 1567 1567 3.97 3.18 0.53 0.69
3 A1 1312 1312 11.35 30.54 0.13 0.23
4 A1 1167 1167 0.00 3.68 0.13 0.23
5 A1 893 893 77.63 11.50 0.75 0.86
6 A2 3236 3236 0.00 111.88 0.75 0.86
7 A2 1194 1194 0.00 2.73 0.75 0.86
8 A2 1054 1054 0.00 0.16 0.75 0.86
9 B1 3249 3249 42.02 23.25 0.75 0.86
10 B1 1174 1174 3.50 6.05 0.75 0.86
11 B1 829 829 0.15 4.45 0.75 0.86
12 B2 3146 3146 33.34 10.93 0.75 0.86
13 B2 1532 1532 0.16 6.24 0.75 0.86
14 B2 1171 1171 1.36 1.51 0.75 0.86
15 B2 842 842 9.78 5.58 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12758.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12758.6 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=FULLultrafine/6-31+G**
ABC
0.84646 0.73902 0.46938

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.860
C2 0.000 0.733 -0.377
C3 0.000 -0.733 -0.377
H4 0.919 1.270 -0.590
H5 -0.919 1.270 -0.590
H6 -0.919 -1.270 -0.590
H7 0.919 -1.270 -0.590

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43761.43762.13512.13512.13512.1351
C21.43761.46671.08531.08532.21402.2140
C31.43761.46672.21402.21401.08531.0853
H42.13511.08532.21401.83833.13472.5391
H52.13511.08532.21401.83832.53913.1347
H62.13512.21401.08533.13472.53911.8383
H72.13512.21401.08532.53913.13471.8383

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 59.328 O1 C2 H4 114.905
O1 C2 H5 114.905 O1 C3 C2 59.328
O1 C3 H6 114.905 O1 C3 H7 114.905
C2 O1 C3 61.344 C2 C3 H6 119.608
C2 C3 H7 119.608 C3 C2 H4 119.608
C3 C2 H5 119.608 H4 C2 H5 115.755
H6 C3 H7 115.755
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability