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

using model chemistry: MP3=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 MP3=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-153.403834
Energy at 298.15K 
HF Energy-152.888666
Nuclear repulsion energy74.805669
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 MP3=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 12.92      
2 A1 1549 1549 2.53      
3 A1 1308 1308 12.67      
4 A1 1159 1159 0.07      
5 A1 908 908 70.02      
6 A2 3246 3246 0.00      
7 A2 1171 1171 0.00      
8 A2 1052 1052 0.00      
9 B1 3262 3262 34.39      
10 B1 1173 1173 5.56      
11 B1 813 813 0.18      
12 B2 3150 3150 29.17      
13 B2 1506 1506 0.01      
14 B2 1161 1161 0.10      
15 B2 867 867 7.60      

Unscaled Zero Point Vibrational Energy (zpe) 12740.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12740.2 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 MP3=FULL/daug-cc-pVDZ
ABC
0.84846 0.72860 0.46734

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.857
C2 0.000 0.739 -0.374
C3 0.000 -0.739 -0.374
H4 0.927 1.274 -0.591
H5 -0.927 1.274 -0.591
H6 -0.927 -1.274 -0.591
H7 0.927 -1.274 -0.591

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43661.43662.14052.14052.14052.1405
C21.43661.47901.09231.09232.22762.2276
C31.43661.47902.22762.22761.09231.0923
H42.14051.09232.22761.85473.15212.5486
H52.14051.09232.22761.85472.54863.1521
H62.14052.22761.09233.15212.54861.8547
H72.14052.22761.09232.54863.15211.8547

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 59.019 O1 C2 H4 114.973
O1 C2 H5 114.973 O1 C3 C2 59.019
O1 C3 H6 114.973 O1 C3 H7 114.973
C2 O1 C3 61.962 C2 C3 H6 119.318
C2 C3 H7 119.318 C3 C2 H4 119.318
C3 C2 H5 119.318 H4 C2 H5 116.214
H6 C3 H7 116.214
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability