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

using model chemistry: MP4/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/daug-cc-pVTZ
 hartrees
Energy at 0K-302.687767
Energy at 298.15K 
HF Energy-301.598646
Nuclear repulsion energy158.549432
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 MP4/daug-cc-pVTZ
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 3024 3024        
2 A1 1822 1822        
3 A1 1422 1422        
4 A1 1121 1121        
5 A1 525 525        
6 A1 277 277        
7 A2 988 988        
8 A2 172 172        
9 B1 1000 1000        
10 B1 123 123        
11 B2 3004 3004        
12 B2 1744 1744        
13 B2 1365 1365        
14 B2 1042 1042        
15 B2 692 692        

Unscaled Zero Point Vibrational Energy (zpe) 9160.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9160.7 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 MP4/daug-cc-pVTZ
ABC
1.60021 0.08559 0.08124

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.405
C2 0.000 1.177 -0.323
C3 0.000 -1.177 -0.323
O4 0.000 2.248 0.216
O5 0.000 -2.248 0.216
H6 0.000 1.016 -1.412
H7 0.000 -1.016 -1.412

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38431.38432.25572.25572.08182.0818
C21.38432.35451.19853.46721.10042.4489
C31.38432.35453.46721.19852.44891.1004
O42.25571.19853.46724.49552.04093.6474
O52.25573.46721.19854.49553.64742.0409
H62.08181.10042.44892.04093.64742.0327
H72.08182.44891.10043.64742.04092.0327

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 121.531 O1 C2 H6 113.333
O1 C3 O5 121.531 C2 O1 C3 116.516
O4 C2 H6 125.137
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability