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

using model chemistry: B2PLYP=FULL/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-153.734857
Energy at 298.15K 
HF Energy-153.534414
Nuclear repulsion energy75.406597
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/cc-pVTZ
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 3128 2990 14.21 230.46 0.08 0.15
2 A1 1555 1486 2.15 1.69 0.70 0.82
3 A1 1309 1251 12.47 27.39 0.13 0.24
4 A1 1157 1106 0.02 1.93 0.33 0.49
5 A1 897 857 64.20 9.65 0.74 0.85
6 A2 3202 3060 0.00 111.37 0.75 0.86
7 A2 1186 1133 0.00 1.75 0.75 0.86
8 A2 1056 1009 0.00 0.01 0.75 0.86
9 B1 3217 3075 43.35 18.06 0.75 0.86
10 B1 1179 1127 3.39 7.84 0.75 0.86
11 B1 825 789 0.01 4.83 0.75 0.86
12 B2 3121 2983 38.02 9.98 0.75 0.86
13 B2 1522 1454 0.02 4.90 0.75 0.86
14 B2 1165 1113 1.54 1.31 0.75 0.86
15 B2 845 808 10.42 4.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12681.4 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 12120.8 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 B2PLYP=FULL/cc-pVTZ
ABC
0.85567 0.74590 0.47442

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.855
C2 0.000 0.730 -0.373
C3 0.000 -0.730 -0.373
H4 0.916 1.262 -0.591
H5 -0.916 1.262 -0.591
H6 -0.916 -1.262 -0.591
H7 0.916 -1.262 -0.591

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.42871.42872.12682.12682.12682.1268
C21.42871.46061.08141.08142.20332.2033
C31.42871.46062.20332.20331.08141.0814
H42.12681.08142.20331.83253.11832.5231
H52.12681.08142.20331.83252.52313.1183
H62.12682.20331.08143.11832.52311.8325
H72.12682.20331.08142.52313.11831.8325

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 59.258 O1 C2 H4 115.138
O1 C2 H5 115.138 O1 C3 C2 59.258
O1 C3 H6 115.138 O1 C3 H7 115.138
C2 O1 C3 61.483 C2 C3 H6 119.422
C2 C3 H7 119.422 C3 C2 H4 119.422
C3 C2 H5 119.422 H4 C2 H5 115.829
H6 C3 H7 115.829
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability