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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-153.622402
Energy at 298.15K 
HF Energy-153.474162
Nuclear repulsion energy75.122265
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 3150 2987 11.30 188.48 0.10 0.18
2 A1 1588 1506 3.33 3.99 0.75 0.86
3 A1 1322 1254 9.87 22.40 0.16 0.27
4 A1 1177 1116 0.06 3.13 0.41 0.58
5 A1 908 862 57.95 11.47 0.75 0.86
6 A2 3225 3059 0.00 105.15 0.75 0.86
7 A2 1204 1142 0.00 5.11 0.75 0.86
8 A2 1058 1003 0.00 0.14 0.75 0.86
9 B1 3240 3073 56.81 14.58 0.75 0.86
10 B1 1184 1123 2.70 15.39 0.75 0.86
11 B1 832 789 0.07 9.17 0.75 0.86
12 B2 3142 2980 37.02 9.30 0.75 0.86
13 B2 1550 1470 1.04 6.72 0.75 0.86
14 B2 1161 1101 2.22 3.84 0.75 0.86
15 B2 861 816 11.78 4.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12800.8 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 12140.3 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 B2PLYP=FULL/6-31G*
ABC
0.85116 0.73907 0.47078

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 0.857
C2 0.000 0.733 -0.374
C3 0.000 -0.733 -0.374
H4 0.919 1.271 -0.594
H5 -0.919 1.271 -0.594
H6 -0.919 -1.271 -0.594
H7 0.919 -1.271 -0.594

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43251.43252.13712.13712.13712.1371
C21.43251.46571.08761.08762.21582.2158
C31.43251.46572.21582.21581.08761.0876
H42.13711.08762.21581.83773.13732.5427
H52.13711.08762.21581.83772.54273.1373
H62.13712.21581.08763.13732.54271.8377
H72.13712.21581.08762.54273.13731.8377

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 115.307
O1 C2 H5 115.307 O1 C3 C2 59.231
O1 C3 H6 115.307 O1 C3 H7 115.307
C2 O1 C3 61.538 C2 C3 H6 119.679
C2 C3 H7 119.679 C3 C2 H4 119.679
C3 C2 H5 119.679 H4 C2 H5 115.310
H6 C3 H7 115.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability