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

using model chemistry: PBEPBEultrafine/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/6-31+G**
 hartrees
Energy at 0K-302.774749
Energy at 298.15K 
HF Energy-302.774749
Nuclear repulsion energy157.601068
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 PBEPBEultrafine/6-31+G**
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 2948 2915 87.67 139.41 0.32 0.49
2 A1 1851 1830 22.69 49.94 0.20 0.33
3 A1 1387 1371 0.85 3.58 0.43 0.60
4 A1 1089 1077 97.12 3.47 0.11 0.20
5 A1 513 507 0.10 12.00 0.27 0.43
6 A1 264 261 13.39 0.92 0.29 0.45
7 A2 969 957 0.00 0.67 0.75 0.86
8 A2 175 173 0.00 0.71 0.75 0.86
9 B1 977 966 0.38 3.56 0.75 0.86
10 B1 131 130 4.18 0.12 0.75 0.86
11 B2 2930 2897 1.29 0.87 0.75 0.86
12 B2 1774 1754 670.10 2.55 0.75 0.86
13 B2 1336 1321 6.89 6.61 0.75 0.86
14 B2 1009 998 650.88 3.25 0.75 0.86
15 B2 676 669 40.52 0.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9014.7 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 8911.9 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 PBEPBEultrafine/6-31+G**
ABC
1.57505 0.08452 0.08021

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.394
C2 0.000 1.190 -0.327
C3 0.000 -1.190 -0.327
O4 0.000 2.259 0.227
O5 0.000 -2.259 0.227
H6 0.000 1.039 -1.429
H7 0.000 -1.039 -1.429

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39171.39172.26552.26552.09862.0986
C21.39172.38041.20393.49361.11222.4871
C31.39172.38043.49361.20392.48711.1122
O42.26551.20393.49364.51852.05643.6909
O52.26553.49361.20394.51853.69092.0564
H62.09861.11222.48712.05643.69092.0790
H72.09862.48711.11223.69092.05642.0790

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 121.406 O1 C2 H6 113.425
O1 C3 O5 121.406 C2 O1 C3 117.573
O4 C2 H6 125.169
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.225      
2 C 0.320      
3 C 0.320      
4 O -0.348      
5 O -0.348      
6 H 0.140      
7 H 0.140      


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 -3.356 3.356
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.890 0.000 0.000
y 0.000 -39.325 0.000
z 0.000 0.000 -26.493
Traceless
 xyz
x 6.019 0.000 0.000
y 0.000 -12.633 0.000
z 0.000 0.000 6.614
Polar
3z2-r213.229
x2-y212.434
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.998 0.000 0.000
y 0.000 8.569 0.000
z 0.000 0.000 4.833


<r2> (average value of r2) Å2
<r2> 127.562
(<r2>)1/2 11.294