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

using model chemistry: MP2=FULL/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-153.446129
Energy at 298.15K 
HF Energy-152.884445
Nuclear repulsion energy75.480533
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/6-31G(2df,p)
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 3185 2994 9.42 167.55 0.09 0.17
2 A1 1566 1472 1.92 3.06 0.71 0.83
3 A1 1334 1254 10.24 21.53 0.14 0.25
4 A1 1168 1097 0.33 2.56 0.28 0.44
5 A1 930 874 52.40 9.14 0.75 0.86
6 A2 3275 3078 0.00 86.55 0.75 0.86
7 A2 1196 1124 0.00 3.66 0.75 0.86
8 A2 1070 1005 0.00 0.10 0.75 0.86
9 B1 3289 3091 28.24 12.11 0.75 0.86
10 B1 1191 1120 2.99 11.04 0.75 0.86
11 B1 835 785 0.00 6.00 0.75 0.86
12 B2 3177 2986 22.57 7.96 0.75 0.86
13 B2 1529 1437 0.11 5.31 0.75 0.86
14 B2 1167 1097 1.05 2.09 0.75 0.86
15 B2 884 831 8.96 3.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12897.7 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 12122.5 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/6-31G(2df,p)
ABC
0.85942 0.74559 0.47581

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.852
C2 0.000 0.730 -0.371
C3 0.000 -0.730 -0.371
H4 0.918 1.261 -0.591
H5 -0.918 1.261 -0.591
H6 -0.918 -1.261 -0.591
H7 0.918 -1.261 -0.591

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.42521.42522.12522.12522.12522.1252
C21.42521.46061.08301.08302.20392.2039
C31.42521.46062.20392.20391.08301.0830
H42.12521.08302.20391.83623.12002.5225
H52.12521.08302.20391.83622.52253.1200
H62.12522.20391.08303.12002.52251.8362
H72.12522.20391.08302.52253.12001.8362

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 59.176 O1 C2 H4 115.159
O1 C2 H5 115.159 O1 C3 C2 59.176
O1 C3 H6 115.159 O1 C3 H7 115.159
C2 O1 C3 61.648 C2 C3 H6 119.358
C2 C3 H7 119.358 C3 C2 H4 119.358
C3 C2 H5 119.358 H4 C2 H5 115.929
H6 C3 H7 115.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability