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

using model chemistry: CCSD=FULL/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 CCSD=FULL/cc-pVDZ
 hartrees
Energy at 0K-153.373767
Energy at 298.15K 
HF Energy-152.876370
Nuclear repulsion energy74.959297
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 CCSD=FULL/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 3141 3141 9.35      
2 A1 1562 1562 3.87      
3 A1 1321 1321 10.67      
4 A1 1175 1175 0.61      
5 A1 916 916 57.65      
6 A2 3219 3219        
7 A2 1178 1178        
8 A2 1051 1051        
9 B1 3235 3235 54.23      
10 B1 1179 1179 4.88      
11 B1 822 822 0.02      
12 B2 3129 3129 34.96      
13 B2 1510 1510 0.59      
14 B2 1158 1158 0.79      
15 B2 878 878 7.99      

Unscaled Zero Point Vibrational Energy (zpe) 12737.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12737.8 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 CCSD=FULL/cc-pVDZ
ABC
0.85545 0.72905 0.46982

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.853
C2 0.000 0.738 -0.370
C3 0.000 -0.738 -0.370
H4 0.928 1.277 -0.597
H5 -0.928 1.277 -0.597
H6 -0.928 -1.277 -0.597
H7 0.928 -1.277 -0.597

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.42841.42842.14362.14362.14362.1436
C21.42841.47591.09731.09732.23052.2305
C31.42841.47592.23052.23051.09731.0973
H42.14361.09732.23051.85663.15822.5549
H52.14361.09732.23051.85662.55493.1582
H62.14362.23051.09733.15822.55491.8566
H72.14362.23051.09732.55493.15821.8566

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 58.892 O1 C2 H4 115.522
O1 C2 H5 115.522 O1 C3 C2 58.892
O1 C3 H6 115.522 O1 C3 H7 115.522
C2 O1 C3 62.215 C2 C3 H6 119.446
C2 C3 H7 119.446 C3 C2 H4 119.446
C3 C2 H5 119.446 H4 C2 H5 115.550
H6 C3 H7 115.550
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability