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

using model chemistry: MP3/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 MP3/cc-pVTZ
 hartrees
Energy at 0K-302.592471
Energy at 298.15K 
HF Energy-301.599588
Nuclear repulsion energy160.701294
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 MP3/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 3099 2928 67.29      
2 A1 1981 1871 26.95      
3 A1 1498 1415 0.16      
4 A1 1206 1139 112.21      
5 A1 566 535 0.89      
6 A1 293 277 14.68      
7 A2 1058 999 0.00      
8 A2 185 175 0.00      
9 B1 1067 1008 0.23      
10 B1 129 122 5.04      
11 B2 3077 2907 0.54      
12 B2 1902 1797 681.38      
13 B2 1437 1357 14.48      
14 B2 1164 1099 643.06      
15 B2 734 693 43.14      

Unscaled Zero Point Vibrational Energy (zpe) 9697.4 cm-1
Scaled (by 0.9447) Zero Point Vibrational Energy (zpe) 9161.1 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 MP3/cc-pVTZ
ABC
1.64544 0.08785 0.08340

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.392
C2 0.000 1.164 -0.317
C3 0.000 -1.164 -0.317
O4 0.000 2.217 0.217
O5 0.000 -2.217 0.217
H6 0.000 1.017 -1.402
H7 0.000 -1.017 -1.402

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36341.36342.22422.22422.06222.0622
C21.36342.32871.18103.42361.09472.4360
C31.36342.32873.42361.18102.43601.0947
O42.22421.18103.42364.43462.01593.6170
O52.22423.42361.18104.43463.61702.0159
H62.06221.09472.43602.01593.61702.0337
H72.06222.43601.09473.61702.01592.0337

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 121.724 O1 C2 H6 113.609
O1 C3 O5 121.724 C2 O1 C3 117.297
O4 C2 H6 124.667
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability