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

using model chemistry: BLYP/aug-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 BLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-303.156392
Energy at 298.15K 
HF Energy-303.156392
Nuclear repulsion energy157.541016
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 BLYP/aug-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 2921 2911 81.07 142.14 0.27 0.42
2 A1 1813 1807 26.06 53.37 0.16 0.28
3 A1 1386 1381 0.17 3.63 0.45 0.62
4 A1 1059 1055 88.42 2.23 0.09 0.17
5 A1 502 500 0.07 12.29 0.22 0.36
6 A1 262 261 12.17 0.72 0.18 0.30
7 A2 970 967 0.00 0.21 0.75 0.86
8 A2 174 174 0.00 0.36 0.75 0.86
9 B1 976 973 0.28 1.89 0.75 0.86
10 B1 128 127 4.54 0.07 0.75 0.86
11 B2 2899 2889 1.96 0.58 0.75 0.86
12 B2 1737 1732 642.96 2.36 0.75 0.86
13 B2 1335 1331 5.30 4.03 0.75 0.86
14 B2 944 941 655.31 3.36 0.75 0.86
15 B2 678 676 51.57 0.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8891.8 cm-1
Scaled (by 0.9966) Zero Point Vibrational Energy (zpe) 8861.6 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 BLYP/aug-cc-pVTZ
ABC
1.58087 0.08418 0.07993

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.394
C2 0.000 1.199 -0.327
C3 0.000 -1.199 -0.327
O4 0.000 2.261 0.226
O5 0.000 -2.261 0.226
H6 0.000 1.049 -1.423
H7 0.000 -1.049 -1.423

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39941.39942.26702.26702.09772.0977
C21.39942.39891.19713.50431.10592.5013
C31.39942.39893.50431.19712.50131.1059
O42.26701.19713.50434.52162.04663.6981
O52.26703.50431.19714.52163.69812.0466
H62.09771.10592.50132.04663.69812.0984
H72.09772.50131.10593.69812.04662.0984

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 121.439 O1 C2 H6 113.198
O1 C3 O5 121.439 C2 O1 C3 117.985
O4 C2 H6 125.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.145      
2 C 0.153      
3 C 0.153      
4 O -0.492      
5 O -0.492      
6 H 0.412      
7 H 0.412      


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 -3.250 3.250
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.882 0.000 0.000
y 0.000 -39.394 0.000
z 0.000 0.000 -26.587
Traceless
 xyz
x 6.108 0.000 0.000
y 0.000 -12.659 0.000
z 0.000 0.000 6.551
Polar
3z2-r213.103
x2-y212.511
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.670 0.000 0.000
y 0.000 8.784 0.000
z 0.000 0.000 5.315


<r2> (average value of r2) Å2
<r2> 127.972
(<r2>)1/2 11.312