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

using model chemistry: B2PLYP=FULLultrafine/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-153.661328
Energy at 298.15K 
HF Energy-153.496884
Nuclear repulsion energy74.743310
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/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3131 3131 16.50 249.16 0.06 0.11
2 A1 1533 1533 2.14 2.76 0.26 0.41
3 A1 1297 1297 11.92 32.48 0.10 0.19
4 A1 1133 1133 0.22 4.78 0.12 0.21
5 A1 878 878 71.67 8.39 0.75 0.86
6 A2 3221 3221 0.00 109.64 0.75 0.86
7 A2 1168 1168 0.00 0.83 0.75 0.86
8 A2 1038 1038 0.00 0.01 0.75 0.86
9 B1 3235 3235 36.21 21.93 0.75 0.86
10 B1 1153 1153 3.63 3.23 0.75 0.86
11 B1 810 810 0.21 2.87 0.75 0.86
12 B2 3125 3125 33.89 10.33 0.75 0.86
13 B2 1496 1496 0.06 3.18 0.75 0.86
14 B2 1149 1149 0.25 0.31 0.75 0.86
15 B2 818 818 9.63 3.98 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12592.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12592.3 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=FULLultrafine/daug-cc-pVDZ
ABC
0.83862 0.73458 0.46638

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.863
C2 0.000 0.735 -0.379
C3 0.000 -0.735 -0.379
H4 0.925 1.272 -0.591
H5 -0.925 1.272 -0.591
H6 -0.925 -1.272 -0.591
H7 0.925 -1.272 -0.591

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.44341.44342.14252.14252.14252.1425
C21.44341.47051.09071.09072.22052.2205
C31.44341.47052.22052.22051.09071.0907
H42.14251.09072.22051.85083.14592.5439
H52.14251.09072.22051.85082.54393.1459
H62.14252.22051.09073.14592.54391.8508
H72.14252.22051.09072.54393.14591.8508

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 59.376 O1 C2 H4 114.731
O1 C2 H5 114.731 O1 C3 C2 59.376
O1 C3 H6 114.731 O1 C3 H7 114.731
C2 O1 C3 61.248 C2 C3 H6 119.477
C2 C3 H7 119.477 C3 C2 H4 119.477
C3 C2 H5 119.477 H4 C2 H5 116.089
H6 C3 H7 116.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability