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

using model chemistry: HF/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 HF/6-31G*
 hartrees
Energy at 0K-301.482345
Energy at 298.15K 
HF Energy-301.482345
Nuclear repulsion energy161.952676
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/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 A 3285 2951 94.86 98.63 0.27 0.42
2 A 2123 1907 59.37 30.80 0.18 0.30
3 A 1611 1447 2.81 1.20 0.36 0.52
4 A 1285 1155 158.78 4.14 0.24 0.39
5 A 1162 1044 0.00 3.78 0.75 0.86
6 A 592 532 1.94 4.98 0.36 0.53
7 A 302 271 18.60 0.88 0.62 0.77
8 A 168 151 0.00 0.78 0.75 0.86
9 B 3258 2927 0.28 3.09 0.75 0.86
10 B 2040 1833 882.17 4.64 0.75 0.86
11 B 1555 1397 18.82 8.65 0.75 0.86
12 B 1276 1146 670.75 1.12 0.75 0.86
13 B 1172 1053 11.05 2.70 0.75 0.86
14 B 773 694 56.10 0.03 0.75 0.86
15 B 132 119 4.24 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10365.8 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 9313.7 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/6-31G*
ABC
1.68236 0.08879 0.08434

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.356
C2 0.000 1.168 -0.317
C3 0.000 -1.168 -0.317
O4 0.000 2.200 0.234
O5 -0.000 -2.200 0.234
H6 -0.001 1.054 -1.397
H7 0.001 -1.054 -1.397

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.34771.34772.20372.20372.04572.0457
C21.34772.33601.17023.41311.08652.4712
C31.34772.33603.41311.17022.47121.0865
O42.20371.17023.41314.40071.99393.6408
O52.20373.41311.17024.40073.64081.9939
H62.04571.08652.47121.99393.64082.1088
H72.04572.47121.08653.64081.99392.1088

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 121.977 O1 C2 H6 113.927
O1 C3 O5 121.977 C2 O1 C3 120.142
O4 C2 H6 124.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.535      
2 C 0.553      
3 C 0.553      
4 O -0.454      
5 O -0.454      
6 H 0.168      
7 H 0.168      


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 -3.910 3.910
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.962 -0.002 0.000
y -0.002 -40.060 0.000
z 0.000 0.000 -25.625
Traceless
 xyz
x 6.881 -0.002 0.000
y -0.002 -14.266 0.000
z 0.000 0.000 7.385
Polar
3z2-r214.770
x2-y214.098
xy-0.002
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.087 -0.000 0.000
y -0.000 5.880 0.000
z 0.000 0.000 3.479


<r2> (average value of r2) Å2
<r2> 122.139
(<r2>)1/2 11.052