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

using model chemistry: MP2=FULL/TZVP

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=FULL/TZVP
 hartrees
Energy at 0K-302.528389
Energy at 298.15K 
HF Energy-301.584332
Nuclear repulsion energy159.187792
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=FULL/TZVP
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 3090 2944 79.94 124.94 0.26 0.42
2 A1 1875 1786 14.06 33.65 0.17 0.29
3 A1 1485 1415 0.72 5.82 0.33 0.50
4 A1 1150 1095 109.21 3.92 0.26 0.41
5 A1 540 514 0.18 10.07 0.30 0.46
6 A1 283 269 13.40 0.79 0.55 0.71
7 A2 1026 978 0.00 0.97 0.75 0.86
8 A2 166 159 0.00 0.85 0.75 0.86
9 B1 1029 980 0.09 2.27 0.75 0.86
10 B1 121 115 3.93 0.16 0.75 0.86
11 B2 3068 2923 0.48 0.38 0.75 0.86
12 B2 1799 1714 616.46 2.71 0.75 0.86
13 B2 1435 1367 11.60 8.37 0.75 0.86
14 B2 1078 1027 741.13 1.73 0.75 0.86
15 B2 714 680 44.80 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9428.9 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 8982.9 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/TZVP
ABC
1.61696 0.08617 0.08181

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.397
C2 0.000 1.175 -0.322
C3 0.000 -1.175 -0.322
O4 0.000 2.239 0.218
O5 0.000 -2.239 0.218
H6 0.000 1.021 -1.407
H7 0.000 -1.021 -1.407

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37801.37802.24612.24612.07352.0735
C21.37802.35101.19283.45691.09672.4498
C31.37802.35103.45691.19282.44981.0967
O42.24611.19283.45694.47802.03183.6426
O52.24613.45691.19284.47803.64262.0318
H62.07351.09672.44982.03183.64262.0412
H72.07352.44981.09673.64262.03182.0412

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 121.614 O1 C2 H6 113.341
O1 C3 O5 121.614 C2 O1 C3 117.082
O4 C2 H6 125.046
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability