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

using model chemistry: CCSD=FULL/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=FULL/TZVP
 hartrees
Energy at 0K-302.538198
Energy at 298.15K 
HF Energy-301.586417
Nuclear repulsion energy159.879691
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=FULL/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 2928 77.41      
2 A1 1934 1832 23.17      
3 A1 1504 1425 0.03      
4 A1 1177 1115 112.81      
5 A1 554 525 0.43      
6 A1 288 273 14.78      
7 A2 1039 984 0.00      
8 A2 158 149 0.00      
9 B1 1043 988 0.76      
10 B1 118 112 3.99      
11 B2 3067 2906 0.20      
12 B2 1857 1759 684.44      
13 B2 1453 1377 16.93      
14 B2 1126 1067 693.84      
15 B2 725 687 47.96      

Unscaled Zero Point Vibrational Energy (zpe) 9565.9 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 9063.7 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=FULL/TZVP
ABC
1.62729 0.08691 0.08251

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/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 2.228 0.221
O5 0.000 -2.228 0.221
H6 0.000 1.029 -1.408
H7 0.000 -1.029 -1.408

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37151.37152.23462.23462.07192.0719
C21.37152.34531.18643.44371.09662.4553
C31.37152.34533.44371.18642.45531.0966
O42.23461.18643.44374.45642.02263.6416
O52.23463.44371.18644.45643.64162.0226
H62.07191.09662.45532.02263.64162.0578
H72.07192.45531.09663.64162.02262.0578

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 121.601 O1 C2 H6 113.709
O1 C3 O5 121.601 C2 O1 C3 117.521
O4 C2 H6 124.690
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability