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

using model chemistry: CCSD=FULL/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-153.408154
Energy at 298.15K 
HF Energy-152.887535
Nuclear repulsion energy74.623208
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/aug-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 3138 3138 14.54      
2 A1 1545 1545 2.31      
3 A1 1304 1304 11.64      
4 A1 1158 1158 0.03      
5 A1 896 896 70.23      
6 A2 3222 3222        
7 A2 1169 1169        
8 A2 1042 1042        
9 B1 3237 3237 36.75      
10 B1 1163 1163 4.56      
11 B1 812 812 0.13      
12 B2 3129 3129 31.52      
13 B2 1501 1501 0.00      
14 B2 1161 1161 0.07      
15 B2 844 844 7.88      

Unscaled Zero Point Vibrational Energy (zpe) 12660.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12660.1 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/aug-cc-pVDZ
ABC
0.84035 0.72849 0.46511

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.862
C2 0.000 0.739 -0.377
C3 0.000 -0.739 -0.377
H4 0.929 1.277 -0.591
H5 -0.929 1.277 -0.591
H6 -0.929 -1.277 -0.591
H7 0.929 -1.277 -0.591

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.44261.44262.14582.14582.14582.1458
C21.44261.47721.09461.09462.22922.2292
C31.44261.47722.22922.22921.09461.0946
H42.14581.09462.22921.85783.15752.5531
H52.14581.09462.22921.85782.55313.1575
H62.14582.22921.09463.15752.55311.8578
H72.14582.22921.09462.55313.15751.8578

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 59.202 O1 C2 H4 114.813
O1 C2 H5 114.813 O1 C3 C2 59.202
O1 C3 H6 114.813 O1 C3 H7 114.813
C2 O1 C3 61.596 C2 C3 H6 119.436
C2 C3 H7 119.436 C3 C2 H4 119.436
C3 C2 H5 119.436 H4 C2 H5 116.131
H6 C3 H7 116.131
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability