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

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-302.260203
Energy at 298.15K 
HF Energy-301.478116
Nuclear repulsion energy159.131884
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 CCD/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 3095 2930 81.69      
2 A1 1968 1862 24.86      
3 A1 1504 1424 0.09      
4 A1 1187 1123 117.19      
5 A1 553 524 1.18      
6 A1 288 272 13.78      
7 A2 1043 987 0.00      
8 A2 159 151 0.00      
9 B1 1047 991 1.45      
10 B1 123 117 3.43      
11 B2 3073 2908 0.08      
12 B2 1896 1794 606.54      
13 B2 1447 1370 19.03      
14 B2 1157 1095 631.13      
15 B2 716 678 40.22      

Unscaled Zero Point Vibrational Energy (zpe) 9627.9 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 9112.8 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 CCD/6-31G*
ABC
1.60816 0.08613 0.08175

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.385
C2 0.000 1.179 -0.324
C3 0.000 -1.179 -0.324
O4 0.000 2.238 0.228
O5 0.000 -2.238 0.228
H6 0.000 1.045 -1.418
H7 0.000 -1.045 -1.418

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37511.37512.24322.24322.08332.0833
C21.37512.35711.19403.46041.10202.4780
C31.37512.35713.46041.19402.47801.1020
O42.24321.19403.46044.47542.03203.6718
O52.24323.46041.19404.47543.67182.0320
H62.08331.10202.47802.03203.67182.0899
H72.08332.47801.10203.67182.03202.0899

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 121.495 O1 C2 H6 114.046
O1 C3 O5 121.495 C2 O1 C3 117.981
O4 C2 H6 124.459
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability