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

using model chemistry: MP4/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/6-311G**
 hartrees
Energy at 0K-302.465120
Energy at 298.15K 
HF Energy-301.554937
Nuclear repulsion energy158.469156
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 MP4/6-311G**
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 3024 2932        
2 A1 1850 1794        
3 A1 1446 1402        
4 A1 1131 1097        
5 A1 528 512        
6 A1 280 271        
7 A2 1015 984        
8 A2 180 175        
9 B1 1018 987        
10 B1 123 120        
11 B2 3000 2909        
12 B2 1776 1722        
13 B2 1398 1355        
14 B2 1053 1021        
15 B2 695 674        

Unscaled Zero Point Vibrational Energy (zpe) 9258.3 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 8977.7 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 MP4/6-311G**
ABC
1.60674 0.08541 0.08110

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.410
C2 0.000 1.178 -0.320
C3 0.000 -1.178 -0.320
O4 0.000 2.251 0.212
O5 0.000 -2.251 0.212
H6 0.000 1.007 -1.412
H7 0.000 -1.007 -1.412

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38581.38582.25932.25932.08152.0815
C21.38582.35591.19723.46951.10522.4424
C31.38582.35593.46951.19722.44241.1052
O42.25931.19723.46954.50112.04533.6396
O52.25933.46951.19724.50113.63962.0453
H62.08151.10522.44242.04533.63962.0137
H72.08152.44241.10523.63962.04532.0137

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 121.844 O1 C2 H6 112.879
O1 C3 O5 121.844 C2 O1 C3 116.430
O4 C2 H6 125.276
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability