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

using model chemistry: QCISD(T)=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-302.354504
Energy at 298.15K 
HF Energy-301.487448
Nuclear repulsion energy158.175125
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/6-31+G**
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 3102 3102        
2 A1 1880 1880        
3 A1 1472 1472        
4 A1 1137 1137        
5 A1 532 532        
6 A1 275 275        
7 A2 1008 1008        
8 A2 155 155        
9 B1 1015 1015        
10 B1 121 121        
11 B2 3081 3081        
12 B2 1801 1801        
13 B2 1418 1418        
14 B2 1085 1085        
15 B2 692 692        

Unscaled Zero Point Vibrational Energy (zpe) 9386.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9386.6 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/6-31+G**
ABC
1.59577 0.08507 0.08077

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.395
C2 0.000 1.183 -0.326
C3 0.000 -1.183 -0.326
O4 0.000 2.253 0.224
O5 0.000 -2.253 0.224
H6 0.000 1.039 -1.414
H7 0.000 -1.039 -1.414

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38521.38522.25952.25952.08562.0856
C21.38522.36611.20293.47981.09722.4742
C31.38522.36613.47981.20292.47421.0972
O42.25951.20293.47984.50602.03833.6769
O52.25953.47981.20294.50603.67692.0383
H62.08561.09722.47422.03833.67692.0783
H72.08562.47421.09723.67692.03832.0783

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 121.466 O1 C2 H6 113.807
O1 C3 O5 121.466 C2 O1 C3 117.314
O4 C2 H6 124.727
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability