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

using model chemistry: MP2/daug-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 MP2/daug-cc-pVDZ
 hartrees
Energy at 0K-302.376955
Energy at 298.15K 
HF Energy-301.523673
Nuclear repulsion energy157.874596
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/daug-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 3080 3080 63.84 130.20 0.23 0.38
2 A1 1837 1837 14.83 49.24 0.14 0.24
3 A1 1432 1432 0.97 5.86 0.34 0.51
4 A1 1123 1123 94.17 3.08 0.10 0.18
5 A1 526 526 0.23 10.80 0.20 0.33
6 A1 279 279 13.12 0.54 0.35 0.51
7 A2 998 998 0.00 0.25 0.75 0.86
8 A2 180 180 0.00 0.50 0.75 0.86
9 B1 1009 1009 0.30 1.59 0.75 0.86
10 B1 128 128 4.82 0.08 0.75 0.86
11 B2 3059 3059 1.98 0.03 0.75 0.86
12 B2 1761 1761 627.88 2.20 0.75 0.86
13 B2 1376 1376 9.28 4.79 0.75 0.86
14 B2 1040 1040 732.63 2.31 0.75 0.86
15 B2 692 692 41.38 0.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9259.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9259.7 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/daug-cc-pVDZ
ABC
1.58434 0.08489 0.08057

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.407
C2 0.000 1.182 -0.324
C3 0.000 -1.182 -0.324
O4 0.000 2.257 0.217
O5 0.000 -2.257 0.217
H6 0.000 1.021 -1.419
H7 0.000 -1.021 -1.419

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39011.39012.26492.26492.09222.0922
C21.39012.36401.20373.48141.10652.4598
C31.39012.36403.48141.20372.45981.1065
O42.26491.20373.48144.51392.05083.6635
O52.26493.48141.20374.51393.66352.0508
H62.09221.10652.45982.05083.66352.0415
H72.09222.45981.10653.66352.05082.0415

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 121.499 O1 C2 H6 113.374
O1 C3 O5 121.499 C2 O1 C3 116.490
O4 C2 H6 125.127
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability