return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCD/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 CCD/cc-pVDZ
 hartrees
Energy at 0K-302.311423
Energy at 298.15K 
HF Energy-301.504499
Nuclear repulsion energy159.416692
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/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 3077 2943 89.61      
2 A1 1971 1886 25.71      
3 A1 1475 1411 0.68      
4 A1 1195 1143 120.49      
5 A1 556 532 0.96      
6 A1 290 278 13.02      
7 A2 1046 1001 0.00      
8 A2 176 169 0.00      
9 B1 1050 1005 1.48      
10 B1 124 118 3.87      
11 B2 3051 2919 0.00      
12 B2 1896 1814 653.43      
13 B2 1426 1364 23.45      
14 B2 1148 1098 611.77      
15 B2 721 690 38.35      

Unscaled Zero Point Vibrational Energy (zpe) 9600.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9185.1 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/cc-pVDZ
ABC
1.61432 0.08656 0.08216

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.399
C2 0.000 1.171 -0.319
C3 0.000 -1.171 -0.319
O4 0.000 2.235 0.217
O5 0.000 -2.235 0.217
H6 0.000 1.014 -1.420
H7 0.000 -1.014 -1.420

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37391.37392.24202.24202.08262.0826
C21.37392.34301.19023.44791.11222.4474
C31.37392.34303.44791.19022.44741.1122
O42.24201.19023.44794.46922.04123.6376
O52.24203.44791.19024.46923.63762.0412
H62.08261.11222.44742.04123.63762.0284
H72.08262.44741.11223.63762.04122.0284

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 121.779 O1 C2 H6 113.371
O1 C3 O5 121.779 C2 O1 C3 117.000
O4 C2 H6 124.850
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability