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All results from a given calculation for CHOOCHO (diformyl ether)

using model chemistry: CCD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-311G*
 hartrees
Energy at 0K-302.393337
Energy at 298.15K 
HF Energy-301.556142
Nuclear repulsion energy159.982618
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 CCD/6-311G*
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 3069 2931 86.34      
2 A1 1966 1878 25.30      
3 A1 1494 1426 0.35      
4 A1 1188 1135 121.53      
5 A1 556 531 0.85      
6 A1 292 278 13.96      
7 A2 1042 996 0.00      
8 A2 161 154 0.00      
9 B1 1047 1000 0.78      
10 B1 121 115 3.75      
11 B2 3044 2907 0.00      
12 B2 1894 1809 656.03      
13 B2 1435 1370 20.47      
14 B2 1149 1097 646.38      
15 B2 724 692 46.41      

Unscaled Zero Point Vibrational Energy (zpe) 9590.0 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 9159.4 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 CCD/6-311G*
ABC
1.63031 0.08700 0.08259

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.389
C2 0.000 1.173 -0.319
C3 0.000 -1.173 -0.319
O4 0.000 2.227 0.221
O5 0.000 -2.227 0.221
H6 0.000 1.036 -1.413
H7 0.000 -1.036 -1.413

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36971.36972.23292.23292.07802.0780
C21.36972.34541.18433.44201.10222.4646
C31.36972.34543.44201.18432.46461.1022
O42.23291.18433.44204.45332.02173.6488
O52.23293.44201.18434.45333.64882.0217
H62.07801.10222.46462.02173.64882.0719
H72.07802.46461.10223.64882.02172.0719

picture of diformyl ether state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 O4 121.759 O1 C2 H6 113.981
O1 C3 O5 121.759 C2 O1 C3 117.783
O4 C2 H6 124.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability