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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-303.034319
Energy at 298.15K 
HF Energy-303.034319
Nuclear repulsion energy159.784260
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 B3PW91/6-311G*
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 3020 2907 109.92      
2 A1 1937 1865 32.26      
3 A1 1456 1402 0.06      
4 A1 1148 1105 122.40      
5 A1 539 519 0.42      
6 A1 276 266 14.04      
7 A2 1023 984 0.00      
8 A2 177 170 0.00      
9 B1 1030 991 0.61      
10 B1 129 124 4.27      
11 B2 2998 2886 0.45      
12 B2 1860 1791 693.81      
13 B2 1403 1351 9.73      
14 B2 1087 1046 632.81      
15 B2 714 687 46.73      

Unscaled Zero Point Vibrational Energy (zpe) 9397.7 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 9047.2 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 B3PW91/6-311G*
ABC
1.63334 0.08663 0.08226

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.385
C2 0.000 1.178 -0.319
C3 0.000 -1.178 -0.319
O4 0.000 2.230 0.224
O5 0.000 -2.230 0.224
H6 0.000 1.034 -1.413
H7 0.000 -1.034 -1.413

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37211.37212.23622.23622.07342.0734
C21.37212.35601.18403.45131.10302.4677
C31.37212.35603.45131.18402.46771.1030
O42.23621.18403.45134.46082.02683.6516
O52.23623.45131.18404.46083.65162.0268
H62.07341.10302.46772.02683.65162.0683
H72.07342.46771.10303.65162.02682.0683

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 121.886 O1 C2 H6 113.353
O1 C3 O5 121.886 C2 O1 C3 118.308
O4 C2 H6 124.761
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.216      
2 C 0.190      
3 C 0.190      
4 O -0.263      
5 O -0.263      
6 H 0.181      
7 H 0.181      


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 -3.302 3.302
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.166 0.000 0.000
y 0.000 -38.330 0.000
z 0.000 0.000 -25.717
Traceless
 xyz
x 5.858 0.000 0.000
y 0.000 -12.389 0.000
z 0.000 0.000 6.531
Polar
3z2-r213.062
x2-y212.164
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.320 0.000 0.000
y 0.000 6.931 0.000
z 0.000 0.000 3.856


<r2> (average value of r2) Å2
<r2> 124.363
(<r2>)1/2 11.152