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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-302.443113
Energy at 298.15K 
HF Energy-301.584000
Nuclear repulsion energy159.076690
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/TZVP
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 3090 2929 80.30 125.32 0.26 0.42
2 A1 1872 1775 13.96 33.53 0.17 0.28
3 A1 1484 1407 0.72 5.82 0.33 0.50
4 A1 1149 1089 109.09 3.96 0.26 0.41
5 A1 539 511 0.17 10.13 0.30 0.46
6 A1 283 268 13.42 0.79 0.55 0.71
7 A2 1024 971 0.00 0.97 0.75 0.86
8 A2 166 157 0.00 0.84 0.75 0.86
9 B1 1027 973 0.08 2.28 0.75 0.86
10 B1 120 114 3.94 0.16 0.75 0.86
11 B2 3068 2909 0.46 0.39 0.75 0.86
12 B2 1797 1703 615.42 2.72 0.75 0.86
13 B2 1433 1359 11.81 8.39 0.75 0.86
14 B2 1075 1019 741.23 1.75 0.75 0.86
15 B2 713 676 44.80 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9419.9 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 8929.1 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/TZVP
ABC
1.61420 0.08606 0.08170

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.398
C2 0.000 1.176 -0.322
C3 0.000 -1.176 -0.322
O4 0.000 2.240 0.218
O5 0.000 -2.240 0.218
H6 0.000 1.021 -1.408
H7 0.000 -1.021 -1.408

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37921.37922.24772.24772.07502.0750
C21.37922.35241.19363.45921.09742.4510
C31.37922.35243.45921.19362.45101.0974
O42.24771.19363.45924.48102.03313.6445
O52.24773.45921.19364.48103.64452.0331
H62.07501.09742.45102.03313.64452.0417
H72.07502.45101.09743.64452.03312.0417

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 121.601 O1 C2 H6 113.342
O1 C3 O5 121.601 C2 O1 C3 117.040
O4 C2 H6 125.057
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability