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

using model chemistry: MP2=FULL/6-31G

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=FULL/6-31G
 hartrees
Energy at 0K-301.881500
Energy at 298.15K 
HF Energy-301.302158
Nuclear repulsion energy154.133451
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=FULL/6-31G
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 3091 2937 90.39 133.75 0.25 0.41
2 A1 1723 1637 10.32 11.15 0.14 0.24
3 A1 1469 1395 1.55 5.66 0.27 0.43
4 A1 1039 988 97.90 7.25 0.28 0.44
5 A1 498 474 0.58 15.25 0.38 0.55
6 A1 250 238 10.83 0.83 0.62 0.76
7 A2 1000 950 0.00 1.67 0.75 0.86
8 A2 155 148 0.00 0.78 0.75 0.86
9 B1 1003 953 0.02 3.60 0.75 0.86
10 B1 118 112 1.44 0.07 0.75 0.86
11 B2 3076 2922 1.50 2.74 0.75 0.86
12 B2 1645 1563 447.91 1.78 0.75 0.86
13 B2 1429 1358 5.57 16.54 0.75 0.86
14 B2 987 938 708.59 2.73 0.75 0.86
15 B2 666 633 45.05 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9074.8 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 8621.9 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=FULL/6-31G
ABC
1.53898 0.08026 0.07628

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.389
C2 0.000 1.226 -0.338
C3 0.000 -1.226 -0.338
O4 0.000 2.316 0.237
O5 0.000 -2.316 0.237
H6 0.000 1.089 -1.428
H7 0.000 -1.089 -1.428

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.42501.42502.32082.32082.11792.1179
C21.42502.45231.23203.58841.09912.5588
C31.42502.45233.58841.23202.55881.0991
O42.32081.23203.58844.63172.06863.7900
O52.32083.58841.23204.63173.79002.0686
H62.11791.09912.55882.06863.79002.1774
H72.11792.55881.09913.79002.06862.1774

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 121.552 O1 C2 H6 113.449
O1 C3 O5 121.552 C2 O1 C3 118.732
O4 C2 H6 124.999
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability