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

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-302.253723
Energy at 298.15K 
HF Energy-301.478822
Nuclear repulsion energy159.432991
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 MP3/6-31G*
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 3118 2926 77.98      
2 A1 1986 1864 27.74      
3 A1 1513 1420 0.16      
4 A1 1197 1123 119.41      
5 A1 559 524 1.20      
6 A1 289 271 14.40      
7 A2 1050 985 0.00      
8 A2 163 153 0.00      
9 B1 1054 989 1.37      
10 B1 125 117 3.63      
11 B2 3097 2907 0.14      
12 B2 1913 1795 626.18      
13 B2 1457 1367 18.96      
14 B2 1169 1097 621.44      
15 B2 720 676 41.16      

Unscaled Zero Point Vibrational Energy (zpe) 9703.9 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 9108.1 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 MP3/6-31G*
ABC
1.61120 0.08649 0.08209

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.384
C2 0.000 1.176 -0.324
C3 0.000 -1.176 -0.324
O4 0.000 2.233 0.228
O5 0.000 -2.233 0.228
H6 0.000 1.044 -1.416
H7 0.000 -1.044 -1.416

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37251.37252.23832.23832.08022.0802
C21.37252.35251.19193.45351.10012.4742
C31.37252.35253.45351.19192.47421.1001
O42.23831.19193.45354.46582.02873.6658
O52.23833.45351.19194.46583.66582.0287
H62.08021.10012.47422.02873.66582.0876
H72.08022.47421.10013.66582.02872.0876

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 121.419 O1 C2 H6 114.103
O1 C3 O5 121.419 C2 O1 C3 117.965
O4 C2 H6 124.478
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability