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

using model chemistry: MP2=FULL/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-302.670378
Energy at 298.15K 
HF Energy-301.597508
Nuclear repulsion energy159.868531
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/cc-pVTZ
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 3095 2938 73.56 119.64 0.24 0.38
2 A1 1893 1797 16.35 27.82 0.19 0.33
3 A1 1480 1405 0.68 5.75 0.30 0.46
4 A1 1162 1103 102.27 3.09 0.21 0.35
5 A1 546 519 0.48 9.38 0.27 0.42
6 A1 286 272 12.62 0.68 0.48 0.65
7 A2 1046 993 0.00 0.84 0.75 0.86
8 A2 190 181 0.00 0.41 0.75 0.86
9 B1 1052 999 0.00 1.67 0.75 0.86
10 B1 132 125 4.82 0.12 0.75 0.86
11 B2 3074 2918 1.29 0.53 0.75 0.86
12 B2 1815 1723 592.09 2.99 0.75 0.86
13 B2 1417 1345 7.12 5.82 0.75 0.86
14 B2 1101 1045 684.08 1.91 0.75 0.86
15 B2 719 682 37.30 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9503.1 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 9022.2 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/cc-pVTZ
ABC
1.64004 0.08687 0.08250

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.400
C2 0.000 1.167 -0.318
C3 0.000 -1.167 -0.318
O4 0.000 2.231 0.213
O5 0.000 -2.231 0.213
H6 0.000 1.006 -1.398
H7 0.000 -1.006 -1.398

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37081.37082.23932.23932.06052.0605
C21.37082.33491.18933.44021.09142.4272
C31.37082.33493.44021.18932.42721.0914
O42.23931.18933.44024.46302.02353.6164
O52.23933.44021.18934.46303.61642.0235
H62.06051.09142.42722.02353.61642.0130
H72.06052.42721.09143.61642.02352.0130

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 121.860 O1 C2 H6 113.131
O1 C3 O5 121.860 C2 O1 C3 116.776
O4 C2 H6 125.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability