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

using model chemistry: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G2
 hartrees
Energy at 0K-302.682492
Energy at 298.15K-302.676474
HF Energy-301.482345
Nuclear repulsion energy161.936313
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 HF/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 A 3285 3095 94.86 98.63 0.27 0.42
2 A 2123 2000 59.37 30.80 0.18 0.30
3 A 1611 1517 2.81 1.20 0.36 0.52
4 A 1285 1211 158.78 4.14 0.24 0.39
5 A 1162 1094 0.00 3.78 0.75 0.86
6 A 592 557 1.94 4.98 0.36 0.53
7 A 302 285 18.60 0.88 0.62 0.77
8 A 168 158 0.00 0.78 0.75 0.86
9 B 3258 3069 0.28 3.09 0.75 0.86
10 B 2040 1922 882.17 4.64 0.75 0.86
11 B 1555 1465 18.82 8.65 0.75 0.86
12 B 1276 1202 670.75 1.12 0.75 0.86
13 B 1172 1104 11.05 2.70 0.75 0.86
14 B 773 728 56.10 0.03 0.75 0.86
15 B 132 125 4.24 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10365.8 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 9766.7 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 MP2=FULL/6-31G*
ABC
1.60063 0.08531 0.08099

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.392
C2 0.000 1.181 -0.325
C3 0.000 -1.181 -0.325
O4 0.000 2.250 0.224
O5 0.000 -2.250 0.224
H6 0.000 1.034 -1.415
H7 0.000 -1.034 -1.415

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38171.38172.25642.25642.08252.0825
C21.38172.36241.20173.47501.10072.4691
C31.38172.36243.47501.20172.46911.1007
O42.25641.20173.47504.50042.04163.6707
O52.25643.47501.20174.50043.67072.0416
H62.08251.10072.46912.04163.67072.0678
H72.08252.46911.10073.67072.04162.0678

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 121.966 O1 C2 H6 113.908
O1 C3 O5 121.966 C2 O1 C3 120.148
O4 C2 H6 124.126
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability