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

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

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/6-31G*
 hartrees
Energy at 0K-302.316700
Energy at 298.15K 
HF Energy-301.475473
Nuclear repulsion energy158.290138
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/6-31G*
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 3054 3054        
2 A1 1905 1905        
3 A1 1479 1479        
4 A1 1152 1152        
5 A1 538 538        
6 A1 281 281        
7 A2 1017 1017        
8 A2 162 162        
9 B1 1022 1022        
10 B1 123 123        
11 B2 3032 3032        
12 B2 1830 1830        
13 B2 1422 1422        
14 B2 1101 1101        
15 B2 700 700        

Unscaled Zero Point Vibrational Energy (zpe) 9410.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9410.2 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/6-31G*
ABC
1.59380 0.08524 0.08091

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.393
C2 0.000 1.183 -0.325
C3 0.000 -1.183 -0.325
O4 0.000 2.250 0.225
O5 0.000 -2.250 0.225
H6 0.000 1.040 -1.420
H7 0.000 -1.040 -1.420

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38351.38352.25672.25672.08982.0898
C21.38352.36551.20093.47691.10442.4776
C31.38352.36553.47691.20092.47761.1044
O42.25671.20093.47694.50092.04253.6784
O52.25673.47691.20094.50093.67842.0425
H62.08981.10442.47762.04253.67842.0793
H72.08982.47761.10443.67842.04252.0793

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 121.503 O1 C2 H6 113.807
O1 C3 O5 121.503 C2 O1 C3 117.496
O4 C2 H6 124.690
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability