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

using model chemistry: MP2/6-31+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 MP2/6-31+G**
 hartrees
Energy at 0K-302.293319
Energy at 298.15K 
HF Energy-301.486944
Nuclear repulsion energy158.093165
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 MP2/6-31+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 3132 2946 70.91 128.89 0.29 0.45
2 A1 1860 1750 13.89 43.98 0.18 0.30
3 A1 1474 1387 1.16 6.16 0.31 0.48
4 A1 1137 1070 104.80 4.07 0.15 0.26
5 A1 530 499 0.24 10.30 0.27 0.42
6 A1 278 261 13.83 0.87 0.51 0.68
7 A2 1017 957 0.00 1.01 0.75 0.86
8 A2 161 151 0.00 0.96 0.75 0.86
9 B1 1023 962 0.01 3.21 0.75 0.86
10 B1 124 116 3.74 0.14 0.75 0.86
11 B2 3112 2927 0.54 0.29 0.75 0.86
12 B2 1786 1680 648.10 2.73 0.75 0.86
13 B2 1419 1335 13.47 8.03 0.75 0.86
14 B2 1082 1017 759.73 2.27 0.75 0.86
15 B2 695 653 40.27 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9414.7 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 8855.5 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 MP2/6-31+G**
ABC
1.59527 0.08499 0.08069

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.394
C2 0.000 1.183 -0.326
C3 0.000 -1.183 -0.326
O4 0.000 2.255 0.224
O5 0.000 -2.255 0.224
H6 0.000 1.036 -1.413
H7 0.000 -1.036 -1.413

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38501.38502.26102.26102.08272.0827
C21.38502.36561.20493.48121.09632.4701
C31.38502.36563.48121.20492.47011.0963
O42.26101.20493.48124.50912.04093.6748
O52.26103.48121.20494.50913.67482.0409
H62.08271.09632.47012.04093.67482.0711
H72.08272.47011.09633.67482.04092.0711

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 121.460 O1 C2 H6 113.632
O1 C3 O5 121.460 C2 O1 C3 117.296
O4 C2 H6 124.908
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability