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

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-302.849701
Energy at 298.15K 
HF Energy-302.849701
Nuclear repulsion energy157.209974
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 B1B95/6-31G
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 3100 2956 82.87 121.56 0.28 0.44
2 A1 1862 1776 24.67 25.88 0.17 0.29
3 A1 1472 1404 0.27 2.57 0.31 0.47
4 A1 1090 1040 109.21 7.06 0.24 0.39
5 A1 527 502 1.03 11.37 0.41 0.58
6 A1 255 243 13.52 0.87 0.55 0.71
7 A2 1028 981 0.00 2.59 0.75 0.86
8 A2 166 159 0.00 0.87 0.75 0.86
9 B1 1039 990 0.02 2.91 0.75 0.86
10 B1 133 126 2.03 0.08 0.75 0.86
11 B2 3087 2944 0.91 4.78 0.75 0.86
12 B2 1779 1696 602.50 2.79 0.75 0.86
13 B2 1424 1359 2.84 13.03 0.75 0.86
14 B2 1086 1036 630.93 1.92 0.75 0.86
15 B2 688 656 44.53 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9367.5 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 8933.8 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 B1B95/6-31G
ABC
1.59111 0.08358 0.07941

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.369
C2 0.000 1.204 -0.330
C3 0.000 -1.204 -0.330
O4 0.000 2.268 0.241
O5 0.000 -2.268 0.241
H6 0.000 1.077 -1.418
H7 0.000 -1.077 -1.418

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39201.39202.27182.27182.08652.0865
C21.39202.40761.20803.51861.09512.5272
C31.39202.40763.51861.20802.52721.0951
O42.27181.20803.51864.53642.04203.7343
O52.27183.51861.20804.53643.73432.0420
H62.08651.09512.52722.04203.73432.1548
H72.08652.52721.09513.73432.04202.1548

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 121.638 O1 C2 H6 113.516
O1 C3 O5 121.638 C2 O1 C3 119.711
O4 C2 H6 124.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.454      
2 C 0.396      
3 C 0.396      
4 O -0.335      
5 O -0.335      
6 H 0.166      
7 H 0.166      


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 -3.944 3.944
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.344 0.000 0.000
y 0.000 -39.565 0.000
z 0.000 0.000 -26.207
Traceless
 xyz
x 6.542 0.000 0.000
y 0.000 -13.290 0.000
z 0.000 0.000 6.748
Polar
3z2-r213.495
x2-y213.221
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.868 0.000 0.000
y 0.000 7.245 0.000
z 0.000 0.000 3.583


<r2> (average value of r2) Å2
<r2> 128.550
(<r2>)1/2 11.338