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

using model chemistry: CCD/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 CCD/6-31+G**
 hartrees
Energy at 0K-302.293481
Energy at 298.15K 
HF Energy-301.490252
Nuclear repulsion energy159.085041
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/6-31+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 3139 2958 67.94      
2 A1 1945 1833 21.62      
3 A1 1502 1415 0.00      
4 A1 1176 1108 111.96      
5 A1 550 518 0.62      
6 A1 285 268 15.25      
7 A2 1039 979 0.00      
8 A2 154 145 0.00      
9 B1 1046 985 0.27      
10 B1 122 115 3.80      
11 B2 3117 2937 0.23      
12 B2 1871 1763 719.78      
13 B2 1447 1363 21.52      
14 B2 1144 1078 711.63      
15 B2 711 670 44.71      

Unscaled Zero Point Vibrational Energy (zpe) 9622.2 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 9067.0 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/6-31+G**
ABC
1.61189 0.08604 0.08168

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.387
C2 0.000 1.178 -0.324
C3 0.000 -1.178 -0.324
O4 0.000 2.239 0.226
O5 0.000 -2.239 0.226
H6 0.000 1.043 -1.411
H7 0.000 -1.043 -1.411

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37581.37582.24512.24512.07862.0786
C21.37582.35611.19553.46141.09582.4728
C31.37582.35613.46141.19552.47281.0958
O42.24511.19553.46144.47872.02823.6680
O52.24513.46141.19554.47873.66802.0282
H62.07861.09582.47282.02823.66802.0857
H72.07862.47281.09583.66802.02822.0857

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 121.491 O1 C2 H6 114.014
O1 C3 O5 121.491 C2 O1 C3 117.794
O4 C2 H6 124.495
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability