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

using model chemistry: B3PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-303.070860
Energy at 298.15K 
HF Energy-303.070860
Nuclear repulsion energy159.986238
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 B3PW91/cc-pVTZ
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 3008 2893 86.31      
2 A1 1925 1851 30.91      
3 A1 1439 1384 0.00      
4 A1 1152 1108 108.82      
5 A1 542 521 0.51      
6 A1 277 266 13.77      
7 A2 1024 984 0.00      
8 A2 186 179 0.00      
9 B1 1033 993 0.06      
10 B1 132 127 5.00      
11 B2 2988 2873 1.51      
12 B2 1845 1774 669.46      
13 B2 1384 1331 6.15      
14 B2 1086 1044 640.51      
15 B2 715 687 43.15      

Unscaled Zero Point Vibrational Energy (zpe) 9366.8 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 9007.1 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 B3PW91/cc-pVTZ
ABC
1.63164 0.08697 0.08257

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.387
C2 0.000 1.174 -0.319
C3 0.000 -1.174 -0.319
O4 0.000 2.227 0.222
O5 0.000 -2.227 0.222
H6 0.000 1.025 -1.411
H7 0.000 -1.025 -1.411

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37021.37022.23302.23302.06932.0693
C21.37022.34821.18403.44391.10162.4548
C31.37022.34823.44391.18402.45481.1016
O42.23301.18403.44394.45382.02803.6388
O52.23303.44391.18404.45383.63882.0280
H62.06931.10162.45482.02803.63882.0495
H72.06932.45481.10163.63882.02802.0495

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 121.738 O1 C2 H6 113.238
O1 C3 O5 121.738 C2 O1 C3 117.940
O4 C2 H6 125.024
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.100      
2 C 0.233      
3 C 0.233      
4 O -0.220      
5 O -0.220      
6 H 0.038      
7 H 0.038      


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 -3.220 3.220
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.192 0.000 0.000
y 0.000 -38.517 0.000
z 0.000 0.000 -25.737
Traceless
 xyz
x 5.935 0.000 0.000
y 0.000 -12.552 0.000
z 0.000 0.000 6.617
Polar
3z2-r213.234
x2-y212.325
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.828 0.000 0.000
y 0.000 7.366 0.000
z 0.000 0.000 4.338


<r2> (average value of r2) Å2
<r2> 124.012
(<r2>)1/2 11.136