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

using model chemistry: CCD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-302.438513
Energy at 298.15K 
HF Energy-301.586933
Nuclear repulsion energy160.102291
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 CCD/TZVP
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 3098 2937 75.86      
2 A1 1956 1855 21.89      
3 A1 1511 1433 0.09      
4 A1 1187 1125 116.29      
5 A1 559 530 0.52      
6 A1 290 275 14.83      
7 A2 1044 990 0.00      
8 A2 159 150 0.00      
9 B1 1048 993 0.79      
10 B1 118 112 3.92      
11 B2 3075 2915 0.15      
12 B2 1881 1783 687.56      
13 B2 1460 1384 19.10      
14 B2 1141 1081 696.06      
15 B2 730 692 48.56      

Unscaled Zero Point Vibrational Energy (zpe) 9627.8 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 9127.1 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 CCD/TZVP
ABC
1.62975 0.08717 0.08275

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.389
C2 0.000 1.171 -0.320
C3 0.000 -1.171 -0.320
O4 0.000 2.225 0.221
O5 0.000 -2.225 0.221
H6 0.000 1.030 -1.408
H7 0.000 -1.030 -1.408

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36951.36952.23102.23102.07132.0713
C21.36952.34271.18443.43891.09702.4550
C31.36952.34273.43891.18442.45501.0970
O42.23101.18443.43894.44932.02073.6393
O52.23103.43891.18444.44933.63932.0207
H62.07131.09702.45502.02073.63932.0590
H72.07132.45501.09703.63932.02072.0590

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 121.584 O1 C2 H6 113.775
O1 C3 O5 121.584 C2 O1 C3 117.590
O4 C2 H6 124.640
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability