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

using model chemistry: QCISD(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 QCISD(T)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-302.756706
Energy at 298.15K 
HF Energy-301.601904
Nuclear repulsion energy159.769796
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 QCISD(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 3051 3051        
2 A1 1889 1889        
3 A1 1447 1447        
4 A1 1150 1150        
5 A1 543 543        
6 A1 282 282        
7 A2 1038 1038        
8 A2 189 189        
9 B1 1038 1038        
10 B1 129 129        
11 B2 3027 3027        
12 B2 1810 1810        
13 B2 1386 1386        
14 B2 1089 1089        
15 B2 707 707        

Unscaled Zero Point Vibrational Energy (zpe) 9386.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9386.1 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 QCISD(T)=FULL/aug-cc-pVTZ
ABC
1.63004 0.08683 0.08243

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.399
C2 0.000 1.170 -0.319
C3 0.000 -1.170 -0.319
O4 0.000 2.231 0.216
O5 0.000 -2.231 0.216
H6 0.000 1.015 -1.403
H7 0.000 -1.015 -1.403

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37251.37252.23872.23872.06762.0676
C21.37252.33911.18893.44261.09432.4380
C31.37252.33913.44261.18892.43801.0943
O42.23871.18893.44264.46242.02463.6268
O52.23873.44261.18894.46243.62682.0246
H62.06761.09432.43802.02463.62682.0291
H72.06762.43801.09433.62682.02462.0291

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 121.696 O1 C2 H6 113.416
O1 C3 O5 121.696 C2 O1 C3 116.884
O4 C2 H6 124.888
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability