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

using model chemistry: QCISD/6-311G**

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/6-311G**
 hartrees
Energy at 0K-302.425050
Energy at 298.15K 
HF Energy-301.558589
Nuclear repulsion energy159.545153
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/6-311G**
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 3065 2924 93.36      
2 A1 1926 1837 25.79      
3 A1 1480 1412 0.14      
4 A1 1170 1116 116.93      
5 A1 548 523 0.64      
6 A1 287 273 13.86      
7 A2 1043 996 0.00      
8 A2 169 161 0.00      
9 B1 1048 1000 1.49      
10 B1 122 116 4.14      
11 B2 3039 2899 0.18      
12 B2 1850 1765 651.80      
13 B2 1430 1364 16.04      
14 B2 1117 1066 629.43      
15 B2 714 681 43.63      

Unscaled Zero Point Vibrational Energy (zpe) 9502.9 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 9066.8 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 QCISD/6-311G**
ABC
1.62621 0.08654 0.08217

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.398
C2 0.000 1.173 -0.319
C3 0.000 -1.173 -0.319
O4 0.000 2.234 0.216
O5 0.000 -2.234 0.216
H6 0.000 1.017 -1.410
H7 0.000 -1.017 -1.410

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37461.37462.24172.24172.07422.0742
C21.37462.34601.18843.44901.10222.4467
C31.37462.34603.44901.18842.44671.1022
O42.24171.18843.44904.46852.03103.6351
O52.24173.44901.18844.46853.63512.0310
H62.07421.10222.44672.03103.63512.0340
H72.07422.44671.10223.63512.03102.0340

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 121.831 O1 C2 H6 113.289
O1 C3 O5 121.831 C2 O1 C3 117.146
O4 C2 H6 124.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability