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

using model chemistry: MP2=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-297.739747
Energy at 298.15K 
HF Energy-297.441877
Nuclear repulsion energy153.483408
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/STO-3G
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 3273 2909 41.46 53.77 0.36 0.53
2 A1 1845 1640 0.04 0.59 0.06 0.12
3 A1 1518 1349 0.09 5.07 0.47 0.64
4 A1 1150 1023 54.13 4.55 0.58 0.74
5 A1 552 491 1.89 7.85 0.37 0.54
6 A1 294 262 7.26 0.40 0.48 0.65
7 A2 952 846 0.00 0.17 0.75 0.86
8 A2 211 188 0.00 0.16 0.75 0.86
9 B1 936 832 0.05 1.47 0.75 0.86
10 B1 111 98 1.50 0.06 0.75 0.86
11 B2 3276 2912 11.10 0.97 0.75 0.86
12 B2 1751 1557 279.98 0.21 0.75 0.86
13 B2 1485 1320 40.13 13.39 0.75 0.86
14 B2 1186 1054 334.73 2.04 0.75 0.86
15 B2 660 587 6.61 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9600.1 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 8533.6 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=FULL/STO-3G
ABC
1.47198 0.08099 0.07676

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.461
C2 0.000 1.190 -0.335
C3 0.000 -1.190 -0.335
O4 0.000 2.320 0.201
O5 0.000 -2.320 0.201
H6 0.000 0.984 -1.442
H7 0.000 -0.984 -1.442

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.43111.43112.33502.33502.14232.1423
C21.43112.37911.25103.55051.12612.4393
C31.43112.37913.55051.25102.43931.1261
O42.33501.25103.55054.64082.11723.6900
O52.33503.55051.25104.64083.69002.1172
H62.14231.12612.43932.11723.69001.9681
H72.14232.43931.12613.69002.11721.9681

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 120.904 O1 C2 H6 113.264
O1 C3 O5 120.904 C2 O1 C3 112.444
O4 C2 H6 125.832
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability