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

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-59.048692
Energy at 298.15K 
HF Energy-59.048692
Nuclear repulsion energy84.936289
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 HF/CEP-31G
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 3325 2998 108.61 119.06 0.31 0.47
2 A1 1944 1753 40.15 51.51 0.13 0.23
3 A1 1566 1411 1.55 1.82 0.41 0.58
4 A1 1165 1051 157.71 5.34 0.34 0.50
5 A1 552 497 1.70 7.58 0.37 0.54
6 A1 260 234 21.74 1.20 0.69 0.82
7 A2 1104 995 0.00 5.49 0.75 0.86
8 A2 138 124 0.00 1.75 0.75 0.86
9 B1 1111 1002 0.83 0.05 0.75 0.86
10 B1 122 110 1.73 0.14 0.75 0.86
11 B2 3307 2981 0.43 7.13 0.75 0.86
12 B2 1861 1677 863.82 7.51 0.75 0.86
13 B2 1521 1371 8.32 13.09 0.75 0.86
14 B2 1228 1107 732.31 1.46 0.75 0.86
15 B2 723 652 68.07 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9963.1 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 8980.7 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 HF/CEP-31G
ABC
1.59382 0.08406 0.07985

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.337
C2 0.000 1.209 -0.334
C3 0.000 -1.209 -0.334
O4 0.000 2.257 0.259
O5 0.000 -2.257 0.259
H6 0.000 1.124 -1.417
H7 0.000 -1.124 -1.417

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38241.38242.25812.25812.08412.0841
C21.38242.41731.20403.51571.08712.5725
C31.38242.41733.51571.20402.57251.0871
O42.25811.20403.51574.51362.02293.7739
O52.25813.51571.20404.51363.77392.0229
H62.08411.08712.57252.02293.77392.2488
H72.08412.57251.08713.77392.02292.2488

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 121.489 O1 C2 H6 114.591
O1 C3 O5 121.489 C2 O1 C3 121.928
O4 C2 H6 123.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.228      
2 C 0.088      
3 C 0.088      
4 O -0.141      
5 O -0.141      
6 H 0.167      
7 H 0.167      


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 -5.270 5.270
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.708 0.000 0.000
y 0.000 -43.878 0.000
z 0.000 0.000 -26.280
Traceless
 xyz
x 8.371 0.000 0.000
y 0.000 -17.384 0.000
z 0.000 0.000 9.012
Polar
3z2-r218.025
x2-y217.170
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.077 0.000 0.000
y 0.000 6.486 0.000
z 0.000 0.000 3.272


<r2> (average value of r2) Å2
<r2> 101.894
(<r2>)1/2 10.094