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

using model chemistry: CID/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-302.191174
Energy at 298.15K 
HF Energy-301.507282
Nuclear repulsion energy160.721243
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/cc-pVDZ
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 3177 2936 85.13      
2 A1 2042 1887 39.65      
3 A1 1520 1404 1.64      
4 A1 1241 1147 138.36      
5 A1 573 529 1.21      
6 A1 295 273 15.18      
7 A2 1099 1015 0.00      
8 A2 182 168 0.00      
9 B1 1105 1021 3.62      
10 B1 129 119 4.39      
11 B2 3151 2912 0.20      
12 B2 1960 1811 777.85      
13 B2 1469 1358 21.64      
14 B2 1205 1113 636.96      
15 B2 745 688 43.68      

Unscaled Zero Point Vibrational Energy (zpe) 9946.5 cm-1
Scaled (by 0.924) Zero Point Vibrational Energy (zpe) 9190.6 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 CID/cc-pVDZ
ABC
1.64656 0.08783 0.08338

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.385
C2 0.000 1.166 -0.316
C3 0.000 -1.166 -0.316
O4 0.000 2.217 0.221
O5 0.000 -2.217 0.221
H6 0.000 1.020 -1.410
H7 0.000 -1.020 -1.410

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36101.36102.22292.22292.06462.0646
C21.36102.33241.18003.42541.10332.4443
C31.36102.33243.42541.18002.44431.1033
O42.22291.18003.42544.43372.02303.6243
O52.22293.42541.18004.43373.62432.0230
H62.06461.10332.44432.02303.62432.0396
H72.06462.44431.10333.62432.02302.0396

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 121.884 O1 C2 H6 113.408
O1 C3 O5 121.884 C2 O1 C3 117.937
O4 C2 H6 124.708
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability