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

using model chemistry: CCSD/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 CCSD/TZVP
 hartrees
Energy at 0K-302.450172
Energy at 298.15K 
HF Energy-301.586159
Nuclear repulsion energy159.773680
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/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 3091 2950 77.57      
2 A1 1931 1843 23.00      
3 A1 1502 1434 0.03      
4 A1 1175 1122 112.52      
5 A1 553 528 0.42      
6 A1 288 274 14.80      
7 A2 1036 989 0.00      
8 A2 157 149 0.00      
9 B1 1041 993 0.74      
10 B1 117 112 4.00      
11 B2 3067 2927 0.19      
12 B2 1854 1770 683.02      
13 B2 1452 1386 17.16      
14 B2 1123 1072 693.16      
15 B2 724 691 47.88      

Unscaled Zero Point Vibrational Energy (zpe) 9555.7 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 9120.0 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/TZVP
ABC
1.62456 0.08681 0.08240

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.391
C2 0.000 1.173 -0.321
C3 0.000 -1.173 -0.321
O4 0.000 2.230 0.221
O5 0.000 -2.230 0.221
H6 0.000 1.029 -1.409
H7 0.000 -1.029 -1.409

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37261.37262.23612.23612.07352.0735
C21.37262.34661.18713.44571.09732.4564
C31.37262.34663.44571.18712.45641.0973
O42.23611.18713.44574.45922.02393.6435
O52.23613.44571.18714.45923.64352.0239
H62.07351.09732.45642.02393.64352.0584
H72.07352.45641.09733.64352.02392.0584

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 121.587 O1 C2 H6 113.716
O1 C3 O5 121.587 C2 O1 C3 117.477
O4 C2 H6 124.697
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability