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

using model chemistry: MP4/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/daug-cc-pVDZ
 hartrees
Energy at 0K-302.432836
Energy at 298.15K 
HF Energy-301.521207
Nuclear repulsion energy157.197772
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 MP4/daug-cc-pVDZ
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 3027 3027        
2 A1 1800 1800        
3 A1 1410 1410        
4 A1 1101 1101        
5 A1 514 514        
6 A1 275 275        
7 A2 976 976        
8 A2 175 175        
9 B1 988 988        
10 B1 125 125        
11 B2 3007 3007        
12 B2 1724 1724        
13 B2 1357 1357        
14 B2 1007 1007        
15 B2 679 679        

Unscaled Zero Point Vibrational Energy (zpe) 9081.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9081.5 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 MP4/daug-cc-pVDZ
ABC
1.57081 0.08416 0.07988

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.412
C2 0.000 1.187 -0.326
C3 0.000 -1.187 -0.326
O4 0.000 2.267 0.216
O5 0.000 -2.267 0.216
H6 0.000 1.022 -1.424
H7 0.000 -1.022 -1.424

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39741.39742.27522.27522.10102.1010
C21.39742.37411.20813.49611.11092.4670
C31.39742.37413.49611.20812.46701.1109
O42.27521.20813.49614.53362.05943.6750
O52.27523.49611.20814.53363.67502.0594
H62.10101.11092.46702.05943.67502.0436
H72.10102.46701.11093.67502.05942.0436

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 121.507 O1 C2 H6 113.287
O1 C3 O5 121.507 C2 O1 C3 116.316
O4 C2 H6 125.206
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability