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

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-302.754700
Energy at 298.15K 
HF Energy-301.602154
Nuclear repulsion energy159.872854
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 CCSD(T)=FULL/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 3054 2943        
2 A1 1894 1825        
3 A1 1450 1397        
4 A1 1155 1113        
5 A1 545 525        
6 A1 282 272        
7 A2 1040 1002        
8 A2 189 182        
9 B1 1040 1002        
10 B1 130 125        
11 B2 3029 2919        
12 B2 1815 1749        
13 B2 1389 1339        
14 B2 1096 1057        
15 B2 709 683        

Unscaled Zero Point Vibrational Energy (zpe) 9407.9 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 9066.4 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 CCSD(T)=FULL/aug-cc-pVTZ
ABC
1.63217 0.08694 0.08254

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.398
C2 0.000 1.169 -0.319
C3 0.000 -1.169 -0.319
O4 0.000 2.230 0.216
O5 0.000 -2.230 0.216
H6 0.000 1.015 -1.402
H7 0.000 -1.015 -1.402

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37131.37132.23722.23722.06672.0667
C21.37132.33761.18823.44041.09412.4374
C31.37132.33763.44041.18822.43741.0941
O42.23721.18823.44044.45952.02363.6256
O52.23723.44041.18824.45953.62562.0236
H62.06671.09412.43742.02363.62562.0294
H72.06672.43741.09413.62562.02362.0294

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 121.706 O1 C2 H6 113.438
O1 C3 O5 121.706 C2 O1 C3 116.932
O4 C2 H6 124.856
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability