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

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-301.370591
Energy at 298.15K 
HF Energy-301.370591
Nuclear repulsion energy158.655779
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 HF/LANL2DZ
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 3306 2975 84.92 111.20 0.29 0.45
2 A1 1971 1774 45.94 46.86 0.15 0.26
3 A1 1570 1413 0.43 1.91 0.39 0.56
4 A1 1157 1041 152.62 5.42 0.33 0.50
5 A1 557 502 1.56 7.14 0.38 0.55
6 A1 261 235 19.35 1.28 0.72 0.84
7 A2 1121 1009 0.00 5.32 0.75 0.86
8 A2 145 131 0.00 1.81 0.75 0.86
9 B1 1129 1016 1.78 0.23 0.75 0.86
10 B1 127 114 1.18 0.12 0.75 0.86
11 B2 3288 2959 0.31 6.40 0.75 0.86
12 B2 1886 1698 913.09 6.98 0.75 0.86
13 B2 1529 1376 7.40 13.57 0.75 0.86
14 B2 1230 1107 747.64 0.92 0.75 0.86
15 B2 727 654 67.70 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10001.8 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 9000.6 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 HF/LANL2DZ
ABC
1.62411 0.08473 0.08053

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.329
C2 0.000 1.207 -0.330
C3 0.000 -1.207 -0.330
O4 0.000 2.247 0.259
O5 0.000 -2.247 0.259
H6 0.000 1.124 -1.409
H7 0.000 -1.124 -1.409

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37451.37452.24792.24792.06952.0695
C21.37452.41301.19533.50311.08252.5682
C31.37452.41303.50311.19532.56821.0825
O42.24791.19533.50314.49352.01083.7607
O52.24793.50311.19534.49353.76072.0108
H62.06951.08252.56822.01083.76072.2476
H72.06952.56821.08253.76072.01082.2476

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 121.871 O1 C2 H6 114.241
O1 C3 O5 121.871 C2 O1 C3 122.754
O4 C2 H6 123.887
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.421      
2 C 0.306      
3 C 0.306      
4 O -0.280      
5 O -0.280      
6 H 0.185      
7 H 0.185      


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 -5.106 5.106
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.744 0.000 0.000
y 0.000 -43.213 0.000
z 0.000 0.000 -26.318
Traceless
 xyz
x 8.021 0.000 0.000
y 0.000 -16.682 0.000
z 0.000 0.000 8.660
Polar
3z2-r217.320
x2-y216.469
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.922 0.000 0.000
y 0.000 6.429 0.000
z 0.000 0.000 3.327


<r2> (average value of r2) Å2
<r2> 128.018
(<r2>)1/2 11.315