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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-31+G**
 hartrees
Energy at 0K-303.090354
Energy at 298.15K 
HF Energy-303.090354
Nuclear repulsion energy158.833187
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 B3LYPultrafine/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 3039 2926 79.14 131.03 0.31 0.48
2 A1 1907 1835 29.76 47.67 0.19 0.31
3 A1 1448 1394 0.07 3.41 0.41 0.58
4 A1 1133 1091 109.93 3.43 0.14 0.25
5 A1 532 512 0.31 9.46 0.28 0.43
6 A1 273 263 14.83 0.89 0.38 0.55
7 A2 1016 979 0.00 1.17 0.75 0.86
8 A2 171 164 0.00 0.82 0.75 0.86
9 B1 1024 986 0.03 3.08 0.75 0.86
10 B1 133 128 4.19 0.12 0.75 0.86
11 B2 3018 2905 1.03 1.10 0.75 0.86
12 B2 1828 1760 737.72 2.99 0.75 0.86
13 B2 1396 1344 9.92 6.76 0.75 0.86
14 B2 1079 1038 696.13 2.47 0.75 0.86
15 B2 702 675 48.06 0.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9348.6 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 8999.9 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 B3LYPultrafine/6-31+G**
ABC
1.60610 0.08568 0.08134

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.380
C2 0.000 1.185 -0.325
C3 0.000 -1.185 -0.325
O4 0.000 2.242 0.231
O5 0.000 -2.242 0.231
H6 0.000 1.049 -1.419
H7 0.000 -1.049 -1.419

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37861.37862.24722.24722.08212.0821
C21.37862.36991.19453.47201.10222.4876
C31.37862.36993.47201.19452.48761.1022
O42.24721.19453.47204.48452.03583.6818
O52.24723.47201.19454.48453.68182.0358
H62.08211.10222.48762.03583.68182.0985
H72.08212.48761.10223.68182.03582.0985

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 121.534 O1 C2 H6 113.664
O1 C3 O5 121.534 C2 O1 C3 118.527
O4 C2 H6 124.802
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.301      
2 C 0.409      
3 C 0.409      
4 O -0.389      
5 O -0.389      
6 H 0.130      
7 H 0.130      


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 -3.602 3.602
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.710 0.000 0.000
y 0.000 -39.961 0.000
z 0.000 0.000 -26.360
Traceless
 xyz
x 6.450 0.000 0.000
y 0.000 -13.426 0.000
z 0.000 0.000 6.976
Polar
3z2-r213.952
x2-y213.250
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.891 0.000 0.000
y 0.000 7.982 0.000
z 0.000 0.000 4.579


<r2> (average value of r2) Å2
<r2> 126.163
(<r2>)1/2 11.232