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

using model chemistry: mPW1PW91/6-311+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 mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-303.108440
Energy at 298.15K 
HF Energy-303.108440
Nuclear repulsion energy160.509507
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 mPW1PW91/6-311+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 3028 3028 72.69 118.48 0.25 0.41
2 A1 1943 1943 31.67 45.97 0.16 0.27
3 A1 1449 1449 0.00 3.47 0.40 0.57
4 A1 1167 1167 105.43 2.21 0.12 0.22
5 A1 549 549 0.60 8.31 0.22 0.35
6 A1 280 280 14.62 0.64 0.30 0.47
7 A2 1034 1034 0.00 0.60 0.75 0.86
8 A2 184 184 0.00 0.45 0.75 0.86
9 B1 1042 1042 0.04 1.54 0.75 0.86
10 B1 133 133 5.25 0.08 0.75 0.86
11 B2 3008 3008 2.78 0.48 0.75 0.86
12 B2 1862 1862 729.28 2.45 0.75 0.86
13 B2 1394 1394 7.31 4.00 0.75 0.86
14 B2 1106 1106 672.72 2.07 0.75 0.86
15 B2 721 721 46.25 0.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9449.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9449.5 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 mPW1PW91/6-311+G(3df,2p)
ABC
1.64056 0.08756 0.08312

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.384
C2 0.000 1.170 -0.318
C3 0.000 -1.170 -0.318
O4 0.000 2.219 0.223
O5 0.000 -2.219 0.223
H6 0.000 1.025 -1.409
H7 0.000 -1.025 -1.409

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36451.36452.22512.22512.06482.0648
C21.36452.34011.18073.43231.10032.4508
C31.36452.34013.43231.18072.45081.1003
O42.22511.18073.43234.43852.02263.6314
O52.22513.43231.18074.43853.63142.0226
H62.06481.10032.45082.02263.63142.0494
H72.06482.45081.10033.63142.02262.0494

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 121.739 O1 C2 H6 113.373
O1 C3 O5 121.739 C2 O1 C3 118.074
O4 C2 H6 124.888
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.542      
2 C 0.764      
3 C 0.764      
4 O -0.617      
5 O -0.617      
6 H 0.124      
7 H 0.124      


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 -3.350 3.350
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.356 0.000 0.000
y 0.000 -39.214 0.000
z 0.000 0.000 -25.952
Traceless
 xyz
x 6.227 0.000 0.000
y 0.000 -13.060 0.000
z 0.000 0.000 6.833
Polar
3z2-r213.665
x2-y212.858
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.330 0.000 0.000
y 0.000 7.799 0.000
z 0.000 0.000 4.781


<r2> (average value of r2) Å2
<r2> 123.545
(<r2>)1/2 11.115