return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CID/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 CID/6-31G
 hartrees
Energy at 0K-301.788680
Energy at 298.15K 
HF Energy-301.311171
Nuclear repulsion energy156.847867
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 CID/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 3174 2968 69.29      
2 A1 1887 1765 28.21      
3 A1 1523 1424 0.15      
4 A1 1127 1054 120.45      
5 A1 538 503 1.56      
6 A1 261 244 14.46      
7 A2 1058 989 0.00      
8 A2 149 139 0.00      
9 B1 1062 993 1.81      
10 B1 122 114 1.16      
11 B2 3157 2952 1.88      
12 B2 1806 1689 618.69      
13 B2 1483 1387 7.36      
14 B2 1136 1063 658.42      
15 B2 704 658 51.40      

Unscaled Zero Point Vibrational Energy (zpe) 9592.3 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 8970.7 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 CID/6-31G
ABC
1.58398 0.08305 0.07891

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.357
C2 0.000 1.212 -0.333
C3 0.000 -1.212 -0.333
O4 0.000 2.273 0.249
O5 0.000 -2.273 0.249
H6 0.000 1.107 -1.421
H7 0.000 -1.107 -1.421

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39481.39482.27532.27532.09412.0941
C21.39482.42431.20983.53321.09262.5616
C31.39482.42433.53321.20982.56161.0926
O42.27531.20983.53324.54552.03623.7697
O52.27533.53321.20984.54553.76972.0362
H62.09411.09262.56162.03623.76972.2142
H72.09412.56161.09263.76972.03622.2142

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 121.596 O1 C2 H6 114.131
O1 C3 O5 121.596 C2 O1 C3 120.702
O4 C2 H6 124.273
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability