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

using model chemistry: MP2=FULL/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 MP2=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-153.385972
Energy at 298.15K 
HF Energy-152.887691
Nuclear repulsion energy74.476000
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/daug-cc-pVDZ
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 3158 3158 14.57 235.78 0.06 0.11
2 A1 1531 1531 1.79 3.11 0.22 0.36
3 A1 1296 1296 9.67 32.45 0.10 0.18
4 A1 1129 1129 0.71 5.22 0.10 0.19
5 A1 881 881 69.03 8.28 0.73 0.84
6 A2 3256 3256 0.00 97.71 0.75 0.86
7 A2 1166 1166 0.00 0.86 0.75 0.86
8 A2 1036 1036 0.00 0.00 0.75 0.86
9 B1 3271 3271 27.46 19.04 0.75 0.86
10 B1 1149 1149 3.58 2.94 0.75 0.86
11 B1 811 811 0.22 2.37 0.75 0.86
12 B2 3151 3151 26.39 9.17 0.75 0.86
13 B2 1496 1496 0.04 2.88 0.75 0.86
14 B2 1145 1145 0.24 0.19 0.75 0.86
15 B2 813 813 8.10 3.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12643.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12643.8 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 MP2=FULL/daug-cc-pVDZ
ABC
0.82922 0.73192 0.46299

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.869
C2 0.000 0.737 -0.381
C3 0.000 -0.737 -0.381
H4 0.929 1.271 -0.593
H5 -0.929 1.271 -0.593
H6 -0.929 -1.271 -0.593
H7 0.929 -1.271 -0.593

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.45131.45132.14832.14832.14832.1483
C21.45131.47421.09201.09202.22292.2229
C31.45131.47422.22292.22291.09201.0920
H42.14831.09202.22291.85713.14882.5428
H52.14831.09202.22291.85712.54283.1488
H62.14832.22291.09203.14882.54281.8571
H72.14832.22291.09202.54283.14881.8571

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 59.475 O1 C2 H4 114.542
O1 C2 H5 114.542 O1 C3 C2 59.475
O1 C3 H6 114.542 O1 C3 H7 114.542
C2 O1 C3 61.050 C2 C3 H6 119.294
C2 C3 H7 119.294 C3 C2 H4 119.294
C3 C2 H5 119.294 H4 C2 H5 116.497
H6 C3 H7 116.497
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability