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

using model chemistry: PBE1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/6-311G*
 hartrees
Energy at 0K-302.826337
Energy at 298.15K 
HF Energy-302.826337
Nuclear repulsion energy160.166832
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 PBE1PBE/6-311G*
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 3038 2912 106.99 117.24 0.28 0.44
2 A1 1958 1877 33.11 27.91 0.20 0.33
3 A1 1463 1403 0.07 2.16 0.35 0.52
4 A1 1166 1118 124.86 3.54 0.27 0.43
5 A1 547 524 0.55 8.63 0.35 0.52
6 A1 281 269 14.26 0.74 0.39 0.57
7 A2 1031 988 0.00 1.65 0.75 0.86
8 A2 179 172 0.00 0.41 0.75 0.86
9 B1 1038 995 0.80 2.68 0.75 0.86
10 B1 129 124 4.36 0.13 0.75 0.86
11 B2 3015 2890 0.56 1.74 0.75 0.86
12 B2 1880 1802 707.90 3.09 0.75 0.86
13 B2 1410 1351 10.51 7.74 0.75 0.86
14 B2 1113 1067 631.25 1.91 0.75 0.86
15 B2 720 690 45.82 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9483.4 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 9089.9 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 PBE1PBE/6-311G*
ABC
1.63986 0.08709 0.08270

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.384
C2 0.000 1.173 -0.318
C3 0.000 -1.173 -0.318
O4 0.000 2.225 0.223
O5 0.000 -2.225 0.223
H6 0.000 1.030 -1.411
H7 0.000 -1.030 -1.411

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36741.36742.23082.23082.06972.0697
C21.36742.34701.18233.44121.10292.4595
C31.36742.34703.44121.18232.45951.1029
O42.23081.18233.44124.45002.02463.6417
O52.23083.44121.18234.45003.64172.0246
H62.06971.10292.45952.02463.64172.0591
H72.06972.45951.10293.64172.02462.0591

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 121.908 O1 C2 H6 113.388
O1 C3 O5 121.908 C2 O1 C3 118.225
O4 C2 H6 124.704
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.212      
2 C 0.185      
3 C 0.185      
4 O -0.262      
5 O -0.262      
6 H 0.182      
7 H 0.182      


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 -3.289 3.289
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.198 0.000 0.000
y 0.000 -38.353 0.000
z 0.000 0.000 -25.753
Traceless
 xyz
x 5.854 0.000 0.000
y 0.000 -12.378 0.000
z 0.000 0.000 6.523
Polar
3z2-r213.046
x2-y212.155
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.310 0.000 0.000
y 0.000 6.838 0.000
z 0.000 0.000 3.838


<r2> (average value of r2) Å2
<r2> 123.824
(<r2>)1/2 11.128