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

using model chemistry: MP2/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-302.602001
Energy at 298.15K 
HF Energy-301.595432
Nuclear repulsion energy159.551405
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 MP2/6-311+G(3df,2p)
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 3076 2902 60.91 121.52 0.25 0.39
2 A1 1875 1769 17.11 46.36 0.15 0.26
3 A1 1455 1373 0.69 5.68 0.33 0.50
4 A1 1149 1084 97.51 2.90 0.11 0.20
5 A1 539 508 0.40 9.61 0.21 0.35
6 A1 282 266 13.34 0.60 0.39 0.56
7 A2 1022 965 0.00 0.41 0.75 0.86
8 A2 181 171 0.00 0.50 0.75 0.86
9 B1 1030 972 0.04 1.59 0.75 0.86
10 B1 130 122 4.75 0.08 0.75 0.86
11 B2 3055 2882 2.01 0.10 0.75 0.86
12 B2 1798 1697 639.68 2.50 0.75 0.86
13 B2 1396 1317 9.28 4.76 0.75 0.86
14 B2 1084 1022 730.51 2.09 0.75 0.86
15 B2 710 669 42.08 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9390.3 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 8858.8 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 MP2/6-311+G(3df,2p)
ABC
1.62290 0.08659 0.08221

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.395
C2 0.000 1.172 -0.321
C3 0.000 -1.172 -0.321
O4 0.000 2.234 0.219
O5 0.000 -2.234 0.219
H6 0.000 1.019 -1.408
H7 0.000 -1.019 -1.408

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37351.37352.24052.24052.07022.0702
C21.37352.34471.19073.44851.09762.4456
C31.37352.34473.44851.19072.44561.0976
O42.24051.19073.44854.46722.03043.6363
O52.24053.44851.19074.46723.63632.0304
H62.07021.09762.44562.03043.63632.0371
H72.07022.44561.09763.63632.03042.0371

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 121.634 O1 C2 H6 113.344
O1 C3 O5 121.634 C2 O1 C3 117.200
O4 C2 H6 125.021
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability