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

using model chemistry: MP4=FULL/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=FULL/6-311G**
 hartrees
Energy at 0K-302.561620
Energy at 298.15K 
HF Energy-301.555340
Nuclear repulsion energy158.593812
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=FULL/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 3029 2913        
2 A1 1854 1783        
3 A1 1447 1391        
4 A1 1134 1090        
5 A1 530 509        
6 A1 280 270        
7 A2 1018 978        
8 A2 182 175        
9 B1 1020 981        
10 B1 124 119        
11 B2 3006 2890        
12 B2 1779 1711        
13 B2 1399 1345        
14 B2 1058 1017        
15 B2 697 670        

Unscaled Zero Point Vibrational Energy (zpe) 9278.1 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 8920.9 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=FULL/6-311G**
ABC
1.61014 0.08554 0.08122

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.409
C2 0.000 1.177 -0.320
C3 0.000 -1.177 -0.320
O4 0.000 2.249 0.212
O5 0.000 -2.249 0.212
H6 0.000 1.006 -1.411
H7 0.000 -1.006 -1.411

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38421.38422.25762.25762.07972.0797
C21.38422.35381.19653.46681.10492.4406
C31.38422.35383.46681.19652.44061.1049
O42.25761.19653.46684.49792.04423.6371
O52.25763.46681.19654.49793.63712.0442
H62.07971.10492.44062.04423.63712.0120
H72.07972.44061.10493.63712.04422.0120

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 121.873 O1 C2 H6 112.865
O1 C3 O5 121.873 C2 O1 C3 116.477
O4 C2 H6 125.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability