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

using model chemistry: QCISD/daug-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 QCISD/daug-cc-pVDZ
 hartrees
Energy at 0K-302.393055
Energy at 298.15K 
HF Energy-301.525478
Nuclear repulsion energy158.346069
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 QCISD/daug-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 3069 3069 65.18      
2 A1 1878 1878 24.00      
3 A1 1444 1444 0.02      
4 A1 1143 1143 95.94      
5 A1 536 536 0.37      
6 A1 283 283 14.29      
7 A2 1008 1008 0.00      
8 A2 169 169 0.00      
9 B1 1021 1021 0.00      
10 B1 125 125 4.89      
11 B2 3046 3046 1.50      
12 B2 1800 1800 688.75      
13 B2 1389 1389 12.83      
14 B2 1075 1075 676.31      
15 B2 699 699 44.53      

Unscaled Zero Point Vibrational Energy (zpe) 9342.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9342.4 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 QCISD/daug-cc-pVDZ
ABC
1.58995 0.08539 0.08104

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.401
C2 0.000 1.181 -0.324
C3 0.000 -1.181 -0.324
O4 0.000 2.249 0.220
O5 0.000 -2.249 0.220
H6 0.000 1.030 -1.421
H7 0.000 -1.030 -1.421

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38551.38552.25632.25632.09302.0930
C21.38552.36151.19883.47271.10762.4677
C31.38552.36153.47271.19882.46771.1076
O42.25631.19883.47274.49812.04463.6664
O52.25633.47271.19884.49813.66642.0446
H62.09301.10762.46772.04463.66642.0591
H72.09302.46771.10763.66642.04462.0591

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 121.471 O1 C2 H6 113.705
O1 C3 O5 121.471 C2 O1 C3 116.901
O4 C2 H6 124.824
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability