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

using model chemistry: B3LYP/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 B3LYP/CEP-31G
 hartrees
Energy at 0K-60.304330
Energy at 298.15K 
HF Energy-60.304330
Nuclear repulsion energy83.111248
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 B3LYP/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 3057 2961 128.75 134.16 0.34 0.50
2 A1 1760 1704 15.59 38.07 0.14 0.25
3 A1 1427 1382 0.32 3.15 0.31 0.47
4 A1 1026 994 103.05 6.47 0.26 0.42
5 A1 494 479 0.33 14.25 0.36 0.53
6 A1 242 234 16.17 0.63 0.43 0.60
7 A2 973 942 0.00 1.35 0.75 0.86
8 A2 146 141 0.00 0.88 0.75 0.86
9 B1 982 951 3.67 0.28 0.75 0.86
10 B1 123 119 2.93 0.08 0.75 0.86
11 B2 3038 2942 0.41 5.77 0.75 0.86
12 B2 1679 1626 623.15 2.94 0.75 0.86
13 B2 1380 1336 7.08 13.65 0.75 0.86
14 B2 1019 986 675.10 2.77 0.75 0.86
15 B2 656 636 47.43 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9001.2 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 8716.7 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 B3LYP/CEP-31G
ABC
1.52600 0.08071 0.07665

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.384
C2 0.000 1.225 -0.339
C3 0.000 -1.225 -0.339
O4 0.000 2.308 0.242
O5 0.000 -2.308 0.242
H6 0.000 1.096 -1.439
H7 0.000 -1.096 -1.439

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.42251.42252.31262.31262.12772.1277
C21.42252.45031.22863.58061.10842.5689
C31.42252.45033.58061.22862.56891.1084
O42.31261.22863.58064.61642.07253.7966
O52.31263.58061.22864.61643.79662.0725
H62.12771.10842.56892.07253.79662.1919
H72.12772.56891.10843.79662.07252.1919

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 121.282 O1 C2 H6 113.849
O1 C3 O5 121.282 C2 O1 C3 118.917
O4 C2 H6 124.869
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.068      
2 C -0.121      
3 C -0.121      
4 O -0.027      
5 O -0.027      
6 H 0.183      
7 H 0.183      


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 -4.537 4.537
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.782 0.000 0.000
y 0.000 -41.642 0.000
z 0.000 0.000 -26.101
Traceless
 xyz
x 7.089 0.000 0.000
y 0.000 -15.200 0.000
z 0.000 0.000 8.111
Polar
3z2-r216.222
x2-y214.860
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.236 0.000 0.000
y 0.000 7.784 0.000
z 0.000 0.000 3.573


<r2> (average value of r2) Å2
<r2> 104.669
(<r2>)1/2 10.231