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: TPSSh/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 TPSSh/6-311+G(3df,2p)
 hartrees
Energy at 0K-303.193518
Energy at 298.15K 
HF Energy-303.193518
Nuclear repulsion energy159.424523
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 TPSSh/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 3001 3001 79.14 125.99 0.27 0.42
2 A1 1891 1891 27.37 48.29 0.16 0.28
3 A1 1434 1434 0.15 3.80 0.39 0.56
4 A1 1130 1130 99.15 2.43 0.11 0.19
5 A1 531 531 0.30 9.75 0.22 0.36
6 A1 271 271 13.88 0.66 0.25 0.40
7 A2 1014 1014 0.00 0.49 0.75 0.86
8 A2 184 184 0.00 0.42 0.75 0.86
9 B1 1021 1021 0.03 1.72 0.75 0.86
10 B1 132 132 5.13 0.08 0.75 0.86
11 B2 2982 2982 2.41 0.53 0.75 0.86
12 B2 1811 1811 692.00 2.40 0.75 0.86
13 B2 1381 1381 6.31 4.18 0.75 0.86
14 B2 1044 1044 664.43 2.53 0.75 0.86
15 B2 702 702 45.48 0.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9264.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9264.1 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 TPSSh/6-311+G(3df,2p)
ABC
1.61631 0.08640 0.08202

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.393
C2 0.000 1.178 -0.322
C3 0.000 -1.178 -0.322
O4 0.000 2.234 0.221
O5 0.000 -2.234 0.221
H6 0.000 1.024 -1.412
H7 0.000 -1.024 -1.412

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37791.37792.24082.24082.07472.0747
C21.37792.35631.18753.45531.10072.4571
C31.37792.35633.45531.18752.45711.1007
O42.24081.18753.45534.46842.03253.6446
O52.24083.45531.18754.46843.64462.0325
H62.07471.10072.45712.03253.64462.0481
H72.07472.45711.10073.64462.03252.0481

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 121.551 O1 C2 H6 113.187
O1 C3 O5 121.551 C2 O1 C3 117.532
O4 C2 H6 125.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.551      
2 C 0.802      
3 C 0.802      
4 O -0.625      
5 O -0.625      
6 H 0.098      
7 H 0.098      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.299 3.299
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.385 0.000 0.000
y 0.000 8.141 0.000
z 0.000 0.000 4.917


<r2> (average value of r2) Å2
<r2> 124.929
(<r2>)1/2 11.177