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

using model chemistry: B3LYP/CEP-121G

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-121G
 hartrees
Energy at 0K-60.314915
Energy at 298.15K 
HF Energy-60.314915
Nuclear repulsion energy83.253096
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-121G
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 3024 2947 102.09 140.37 0.31 0.47
2 A1 1757 1713 20.30 36.13 0.14 0.24
3 A1 1421 1385 0.09 2.92 0.31 0.47
4 A1 1025 999 95.74 6.62 0.24 0.39
5 A1 492 480 0.31 14.32 0.35 0.52
6 A1 239 233 14.28 0.78 0.42 0.59
7 A2 981 956 0.00 1.82 0.75 0.86
8 A2 148 144 0.00 0.80 0.75 0.86
9 B1 989 963 1.24 2.09 0.75 0.86
10 B1 123 120 2.23 0.10 0.75 0.86
11 B2 3004 2928 0.51 4.64 0.75 0.86
12 B2 1677 1634 636.86 3.25 0.75 0.86
13 B2 1378 1343 8.13 12.81 0.75 0.86
14 B2 1010 984 679.59 2.96 0.75 0.86
15 B2 655 638 49.47 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8961.6 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 8733.1 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-121G
ABC
1.52393 0.08096 0.07688

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.376
C2 0.000 1.227 -0.341
C3 0.000 -1.227 -0.341
O4 0.000 2.303 0.247
O5 0.000 -2.303 0.247
H6 0.000 1.104 -1.437
H7 0.000 -1.104 -1.437

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.42121.42122.30622.30622.12262.1226
C21.42122.45421.22603.57851.10272.5760
C31.42122.45423.57851.22602.57601.1027
O42.30621.22603.57854.60532.06713.8004
O52.30623.57851.22604.60533.80042.0671
H62.12261.10272.57602.06713.80042.2084
H72.12262.57601.10273.80042.06712.2084

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 121.020 O1 C2 H6 113.897
O1 C3 O5 121.020 C2 O1 C3 119.407
O4 C2 H6 125.084
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.107      
2 C 0.002      
3 C 0.002      
4 O -0.075      
5 O -0.075      
6 H 0.126      
7 H 0.126      


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 -4.274 4.274
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.838 0.000 0.000
y 0.000 -40.785 0.000
z 0.000 0.000 -26.480
Traceless
 xyz
x 6.795 0.000 0.000
y 0.000 -14.127 0.000
z 0.000 0.000 7.332
Polar
3z2-r214.663
x2-y213.948
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.361 0.000 0.000
y 0.000 7.966 0.000
z 0.000 0.000 4.054


<r2> (average value of r2) Å2
<r2> 104.345
(<r2>)1/2 10.215