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

using model chemistry: MP4/aug-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 MP4/aug-cc-pVTZ
 hartrees
Energy at 0K-302.685001
Energy at 298.15K 
HF Energy-301.598122
Nuclear repulsion energy158.552450
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/aug-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 3024 2943        
2 A1 1822 1773        
3 A1 1420 1382        
4 A1 1121 1091        
5 A1 525 511        
6 A1 274 267        
7 A2 994 968        
8 A2 162 157        
9 B1 1004 977        
10 B1 121 118        
11 B2 3002 2922        
12 B2 1745 1698        
13 B2 1365 1329        
14 B2 1043 1015        
15 B2 691 673        

Unscaled Zero Point Vibrational Energy (zpe) 9156.2 cm-1
Scaled (by 0.9732) Zero Point Vibrational Energy (zpe) 8910.8 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/aug-cc-pVTZ
ABC
1.60168 0.08557 0.08123

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.405
C2 0.000 1.177 -0.323
C3 0.000 -1.177 -0.323
O4 0.000 2.248 0.216
O5 0.000 -2.248 0.216
H6 0.000 1.017 -1.411
H7 0.000 -1.017 -1.411

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38411.38412.25582.25582.08162.0816
C21.38412.35501.19843.46751.10032.4500
C31.38412.35503.46751.19842.45001.1003
O42.25581.19843.46754.49582.04043.6484
O52.25583.46751.19844.49583.64842.0404
H62.08161.10032.45002.04043.64842.0348
H72.08162.45001.10033.64842.04042.0348

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 121.565 O1 C2 H6 113.342
O1 C3 O5 121.565 C2 O1 C3 116.582
O4 C2 H6 125.094
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability