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

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-303.072503
Energy at 298.15K 
HF Energy-303.072503
Nuclear repulsion energy160.187105
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 mPW1PW91/6-311G*
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 3044 2905 108.04 116.45 0.28 0.44
2 A1 1957 1867 33.36 28.18 0.20 0.33
3 A1 1467 1400 0.10 2.18 0.35 0.52
4 A1 1164 1111 125.36 3.55 0.27 0.43
5 A1 546 521 0.52 8.58 0.35 0.52
6 A1 279 267 14.40 0.72 0.40 0.57
7 A2 1033 986 0.00 1.66 0.75 0.86
8 A2 178 170 0.00 0.43 0.75 0.86
9 B1 1040 993 0.86 2.56 0.75 0.86
10 B1 129 123 4.35 0.13 0.75 0.86
11 B2 3022 2884 0.52 1.80 0.75 0.86
12 B2 1879 1793 711.17 3.08 0.75 0.86
13 B2 1414 1350 10.58 7.78 0.75 0.86
14 B2 1110 1059 636.43 1.89 0.75 0.86
15 B2 720 687 46.71 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9490.5 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 9057.7 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 mPW1PW91/6-311G*
ABC
1.64161 0.08708 0.08269

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.383
C2 0.000 1.174 -0.318
C3 0.000 -1.174 -0.318
O4 0.000 2.225 0.223
O5 0.000 -2.225 0.223
H6 0.000 1.032 -1.410
H7 0.000 -1.032 -1.410

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36771.36772.23062.23062.06862.0686
C21.36772.34861.18173.44201.10122.4613
C31.36772.34863.44201.18172.46131.1012
O42.23061.18173.44204.44972.02263.6429
O52.23063.44201.18174.44973.64292.0226
H62.06861.10122.46132.02263.64292.0630
H72.06862.46131.10123.64292.02262.0630

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 121.908 O1 C2 H6 113.391
O1 C3 O5 121.908 C2 O1 C3 118.316
O4 C2 H6 124.701
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.219      
2 C 0.195      
3 C 0.195      
4 O -0.267      
5 O -0.267      
6 H 0.182      
7 H 0.182      


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 -3.320 3.320
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.136 0.000 0.000
y 0.000 -38.371 0.000
z 0.000 0.000 -25.695
Traceless
 xyz
x 5.897 0.000 0.000
y 0.000 -12.456 0.000
z 0.000 0.000 6.559
Polar
3z2-r213.118
x2-y212.235
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.307 0.000 0.000
y 0.000 6.826 0.000
z 0.000 0.000 3.819


<r2> (average value of r2) Å2
<r2> 123.815
(<r2>)1/2 11.127