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

using model chemistry: CID/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 CID/daug-cc-pVDZ
 hartrees
Energy at 0K-302.246038
Energy at 298.15K 
HF Energy-301.530275
Nuclear repulsion energy160.413763
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 CID/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 3182 3182 59.89      
2 A1 1999 1999 36.17      
3 A1 1509 1509 0.37      
4 A1 1219 1219 116.08      
5 A1 567 567 0.89      
6 A1 295 295 16.56      
7 A2 1079 1079 0.00      
8 A2 180 180 0.00      
9 B1 1093 1093 0.43      
10 B1 132 132 5.42      
11 B2 3157 3157 2.21      
12 B2 1916 1916 813.43      
13 B2 1453 1453 14.31      
14 B2 1173 1173 696.54      
15 B2 737 737 49.49      

Unscaled Zero Point Vibrational Energy (zpe) 9844.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9844.7 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 CID/daug-cc-pVDZ
ABC
1.63786 0.08749 0.08305

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.384
C2 0.000 1.169 -0.319
C3 0.000 -1.169 -0.319
O4 0.000 2.220 0.223
O5 0.000 -2.220 0.223
H6 0.000 1.031 -1.409
H7 0.000 -1.031 -1.409

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36441.36442.22632.22632.06812.0681
C21.36442.33881.18283.43301.09832.4558
C31.36442.33883.43301.18282.45581.0983
O42.22631.18283.43304.44092.01943.6385
O52.22633.43301.18284.44093.63852.0194
H62.06811.09832.45582.01943.63852.0628
H72.06812.45581.09833.63852.01942.0628

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 121.687 O1 C2 H6 113.793
O1 C3 O5 121.687 C2 O1 C3 117.979
O4 C2 H6 124.520
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability