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

using model chemistry: QCISD(T)=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD(T)=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-302.769431
Energy at 298.15K 
HF Energy-301.596148
Nuclear repulsion energy159.772665
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 QCISD(T)=FULL/6-311+G(3df,2p)
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 3052 3052        
2 A1 1893 1893        
3 A1 1455 1455        
4 A1 1155 1155        
5 A1 543 543        
6 A1 283 283        
7 A2 1018 1018        
8 A2 175 175        
9 B1 1027 1027        
10 B1 129 129        
11 B2 3031 3031        
12 B2 1815 1815        
13 B2 1398 1398        
14 B2 1095 1095        
15 B2 710 710        

Unscaled Zero Point Vibrational Energy (zpe) 9388.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9388.4 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 QCISD(T)=FULL/6-311+G(3df,2p)
ABC
1.62624 0.08684 0.08243

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.394
C2 0.000 1.171 -0.320
C3 0.000 -1.171 -0.320
O4 0.000 2.230 0.219
O5 0.000 -2.230 0.219
H6 0.000 1.021 -1.408
H7 0.000 -1.021 -1.408

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37171.37172.23712.23712.07142.0714
C21.37172.34241.18823.44381.09842.4475
C31.37172.34243.44381.18822.44751.0984
O42.23711.18823.44384.46042.02703.6357
O52.23713.44381.18824.46043.63572.0270
H62.07141.09842.44752.02703.63572.0423
H72.07142.44751.09843.63572.02702.0423

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 121.659 O1 C2 H6 113.518
O1 C3 O5 121.659 C2 O1 C3 117.258
O4 C2 H6 124.823
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability