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

using model chemistry: MP3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/6-311+G(3df,2p)
 hartrees
Energy at 0K-302.593800
Energy at 298.15K 
HF Energy-301.598642
Nuclear repulsion energy160.857801
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 MP3/6-311+G(3df,2p)
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 3097 3097 56.80      
2 A1 1978 1978 28.11      
3 A1 1490 1490 0.16      
4 A1 1202 1202 107.56      
5 A1 565 565 0.89      
6 A1 291 291 15.27      
7 A2 1053 1053 0.00      
8 A2 182 182 0.00      
9 B1 1061 1061 0.09      
10 B1 131 131 5.04      
11 B2 3075 3075 1.15      
12 B2 1899 1899 730.16      
13 B2 1431 1431 16.75      
14 B2 1160 1160 676.86      
15 B2 732 732 46.90      

Unscaled Zero Point Vibrational Energy (zpe) 9673.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9673.2 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 MP3/6-311+G(3df,2p)
ABC
1.64278 0.08804 0.08356

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.386
C2 0.000 1.165 -0.318
C3 0.000 -1.165 -0.318
O4 0.000 2.214 0.222
O5 0.000 -2.214 0.222
H6 0.000 1.025 -1.406
H7 0.000 -1.025 -1.406

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36161.36162.21982.21982.06372.0637
C21.36162.33081.17933.42201.09622.4452
C31.36162.33083.42201.17932.44521.0962
O42.21981.17933.42204.42752.01533.6244
O52.21983.42201.17934.42753.62442.0153
H62.06371.09622.44522.01533.62442.0498
H72.06372.44521.09623.62442.01532.0498

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 121.605 O1 C2 H6 113.775
O1 C3 O5 121.605 C2 O1 C3 117.722
O4 C2 H6 124.621
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability