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

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-301.875698
Energy at 298.15K 
HF Energy-301.302082
Nuclear repulsion energy154.116186
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 MP2/6-31G
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 2957 90.52 133.80 0.25 0.41
2 A1 1723 1649 10.31 11.11 0.14 0.24
3 A1 1468 1405 1.55 5.66 0.27 0.43
4 A1 1039 994 97.87 7.25 0.28 0.44
5 A1 498 477 0.57 15.26 0.38 0.55
6 A1 250 239 10.84 0.83 0.62 0.76
7 A2 999 956 0.00 1.67 0.75 0.86
8 A2 155 149 0.00 0.78 0.75 0.86
9 B1 1002 959 0.02 3.61 0.75 0.86
10 B1 118 113 1.45 0.07 0.75 0.86
11 B2 3076 2943 1.50 2.74 0.75 0.86
12 B2 1644 1573 447.78 1.78 0.75 0.86
13 B2 1429 1367 5.61 16.53 0.75 0.86
14 B2 986 944 708.71 2.73 0.75 0.86
15 B2 666 637 45.11 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9072.5 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 8680.6 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 MP2/6-31G
ABC
1.53849 0.08024 0.07627

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

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
O11.42531.42532.32102.32102.11812.1181
C21.42532.45251.23213.58871.09922.5588
C31.42532.45253.58871.23212.55881.0992
O42.32101.23213.58874.63222.06893.7901
O52.32103.58871.23214.63223.79012.0689
H62.11811.09922.55882.06893.79012.1771
H72.11812.55881.09923.79012.06892.1771

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 121.547 O1 C2 H6 113.447
O1 C3 O5 121.547 C2 O1 C3 118.713
O4 C2 H6 125.006
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability