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

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-302.359908
Energy at 298.15K 
HF Energy-301.501881
Nuclear repulsion energy158.564208
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(T)=FULL/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 3043 2931        
2 A1 1906 1836        
3 A1 1447 1394        
4 A1 1160 1117        
5 A1 536 517        
6 A1 278 268        
7 A2 1020 983        
8 A2 181 174        
9 B1 1024 987        
10 B1 124 119        
11 B2 3019 2908        
12 B2 1830 1763        
13 B2 1400 1349        
14 B2 1093 1053        
15 B2 701 675        

Unscaled Zero Point Vibrational Energy (zpe) 9381.1 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 9035.9 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(T)=FULL/cc-pVDZ
ABC
1.59980 0.08566 0.08130

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.408
C2 0.000 1.175 -0.320
C3 0.000 -1.175 -0.320
O4 0.000 2.248 0.213
O5 0.000 -2.248 0.213
H6 0.000 1.008 -1.421
H7 0.000 -1.008 -1.421

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38261.38262.25602.25602.08822.0882
C21.38262.35091.19743.46431.11382.4451
C31.38262.35093.46431.19742.44511.1138
O42.25601.19743.46434.49522.05143.6424
O52.25603.46431.19744.49523.64242.0514
H62.08821.11382.44512.05143.64242.0153
H72.08822.44511.11383.64242.05142.0153

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 121.791 O1 C2 H6 113.103
O1 C3 O5 121.791 C2 O1 C3 116.464
O4 C2 H6 125.106
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability