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

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-301.918546
Energy at 298.15K 
HF Energy-301.357454
Nuclear repulsion energy152.986647
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/SDD
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 3068 2962 113.90 133.20 0.26 0.42
2 A1 1674 1616 6.57 14.96 0.11 0.19
3 A1 1425 1375 3.33 8.01 0.29 0.45
4 A1 988 954 95.58 6.02 0.34 0.51
5 A1 480 463 0.10 16.81 0.35 0.52
6 A1 242 234 12.38 0.60 0.63 0.78
7 A2 968 935 0.00 0.52 0.75 0.86
8 A2 157 151 0.00 0.73 0.75 0.86
9 B1 970 936 1.11 1.05 0.75 0.86
10 B1 121 117 1.69 0.05 0.75 0.86
11 B2 3052 2946 0.09 2.01 0.75 0.86
12 B2 1595 1540 537.88 1.55 0.75 0.86
13 B2 1384 1336 16.55 16.89 0.75 0.86
14 B2 944 911 824.37 2.79 0.75 0.86
15 B2 639 616 52.06 0.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8852.6 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 8545.4 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 MP2/SDD
ABC
1.50921 0.07911 0.07517

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.396
C2 0.000 1.237 -0.342
C3 0.000 -1.237 -0.342
O4 0.000 2.332 0.238
O5 0.000 -2.332 0.238
H6 0.000 1.091 -1.437
H7 0.000 -1.091 -1.437

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.44041.44042.33722.33722.13272.1327
C21.44042.47491.23853.61611.10522.5731
C31.44042.47493.61611.23852.57311.1052
O42.33721.23853.61614.66372.08483.8106
O52.33723.61611.23854.66373.81062.0848
H62.13271.10522.57312.08483.81062.1817
H72.13272.57311.10523.81062.08482.1817

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 121.307 O1 C2 H6 113.159
O1 C3 O5 121.307 C2 O1 C3 118.434
O4 C2 H6 125.534
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability