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

using model chemistry: MP3/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-302.602987
Energy at 298.15K 
HF Energy-301.613504
Nuclear repulsion energy160.723814
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/Def2TZVPP
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 3101 3101 63.54      
2 A1 1976 1976 27.41      
3 A1 1494 1494 0.12      
4 A1 1203 1203 110.67      
5 A1 566 566 0.85      
6 A1 292 292 14.92      
7 A2 1053 1053 0.00      
8 A2 182 182 0.00      
9 B1 1061 1061 0.09      
10 B1 127 127 5.17      
11 B2 3080 3080 0.63      
12 B2 1898 1898 700.23      
13 B2 1434 1434 14.94      
14 B2 1158 1158 662.69      
15 B2 733 733 45.14      

Unscaled Zero Point Vibrational Energy (zpe) 9678.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9678.4 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 MP3/Def2TZVPP
ABC
1.64335 0.08788 0.08342

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.391
C2 0.000 1.165 -0.318
C3 0.000 -1.165 -0.318
O4 0.000 2.216 0.218
O5 0.000 -2.216 0.218
H6 0.000 1.019 -1.403
H7 0.000 -1.019 -1.403

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36371.36372.22322.22322.06292.0629
C21.36372.32991.18043.42361.09462.4385
C31.36372.32993.42361.18042.43851.0946
O42.22321.18043.42364.43292.01543.6188
O52.22323.42361.18044.43293.61882.0154
H62.06291.09462.43852.01543.61882.0379
H72.06292.43851.09463.61882.01542.0379

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 121.654 O1 C2 H6 113.660
O1 C3 O5 121.654 C2 O1 C3 117.352
O4 C2 H6 124.685
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability