return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/cc-pVDZ
 hartrees
Energy at 0K-302.837050
Energy at 298.15K 
HF Energy-302.564847
Nuclear repulsion energy158.909817
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 B2PLYP=FULL/cc-pVDZ
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 3041 2915 94.91 125.06 0.27 0.42
2 A1 1907 1828 26.65 22.04 0.20 0.33
3 A1 1437 1378 0.00 4.25 0.33 0.49
4 A1 1149 1101 112.77 4.41 0.19 0.32
5 A1 536 514 0.48 9.99 0.34 0.51
6 A1 279 268 12.29 0.78 0.46 0.63
7 A2 1026 983 0.00 1.56 0.75 0.86
8 A2 186 178 0.00 0.27 0.75 0.86
9 B1 1030 988 0.67 3.01 0.75 0.86
10 B1 130 124 4.08 0.13 0.75 0.86
11 B2 3018 2892 0.21 1.64 0.75 0.86
12 B2 1828 1752 630.75 3.34 0.75 0.86
13 B2 1389 1331 10.12 8.80 0.75 0.86
14 B2 1081 1036 614.43 2.56 0.75 0.86
15 B2 707 678 38.94 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9371.1 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 8982.2 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 B2PLYP=FULL/cc-pVDZ
ABC
1.60666 0.08594 0.08158

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.399
C2 0.000 1.177 -0.321
C3 0.000 -1.177 -0.321
O4 0.000 2.242 0.219
O5 0.000 -2.242 0.219
H6 0.000 1.014 -1.419
H7 0.000 -1.014 -1.419

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37981.37982.24932.24932.08152.0815
C21.37982.35471.19363.46171.11012.4514
C31.37982.35473.46171.19362.45141.1101
O42.24931.19363.46174.48422.04663.6449
O52.24933.46171.19364.48423.64492.0466
H62.08151.11012.45142.04663.64492.0287
H72.08152.45141.11013.64492.04662.0287

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 121.704 O1 C2 H6 112.987
O1 C3 O5 121.704 C2 O1 C3 117.137
O4 C2 H6 125.309
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability