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

using model chemistry: MP4=FULL/aug-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=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-302.440005
Energy at 298.15K 
HF Energy-301.519829
Nuclear repulsion energy157.299877
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=FULL/aug-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 3039 2964        
2 A1 1803 1758        
3 A1 1408 1373        
4 A1 1104 1077        
5 A1 515 502        
6 A1 274 268        
7 A2 982 958        
8 A2 174 170        
9 B1 991 966        
10 B1 125 122        
11 B2 3019 2945        
12 B2 1725 1683        
13 B2 1355 1322        
14 B2 1011 986        
15 B2 680 663        

Unscaled Zero Point Vibrational Energy (zpe) 9102.5 cm-1
Scaled (by 0.9752) Zero Point Vibrational Energy (zpe) 8876.7 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=FULL/aug-cc-pVDZ
ABC
1.57209 0.08428 0.07999

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.410
C2 0.000 1.187 -0.326
C3 0.000 -1.187 -0.326
O4 0.000 2.265 0.217
O5 0.000 -2.265 0.217
H6 0.000 1.023 -1.424
H7 0.000 -1.023 -1.424

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39601.39602.27332.27332.10002.1000
C21.39602.37301.20753.49411.11042.4676
C31.39602.37303.49411.20752.46761.1104
O42.27331.20753.49414.53022.05823.6751
O52.27333.49411.20754.53023.67512.0582
H62.10001.11042.46762.05823.67512.0463
H72.10002.46761.11043.67512.05822.0463

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 121.483 O1 C2 H6 113.337
O1 C3 O5 121.483 C2 O1 C3 116.408
O4 C2 H6 125.180
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability