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

using model chemistry: HF/daug-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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-301.606694
Energy at 298.15K 
HF Energy-301.606694
Nuclear repulsion energy162.510830
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/daug-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 3217 2910 68.90 105.26 0.22 0.36
2 A1 2086 1887 58.30 46.42 0.12 0.21
3 A1 1586 1435 2.66 2.22 0.41 0.58
4 A1 1278 1156 135.44 2.37 0.13 0.23
5 A1 593 537 1.46 5.08 0.19 0.32
6 A1 303 274 18.46 0.60 0.49 0.66
7 A2 1152 1042 0.00 1.44 0.75 0.86
8 A2 177 160 0.00 0.55 0.75 0.86
9 B1 1166 1055 2.55 0.63 0.75 0.86
10 B1 134 122 5.46 0.07 0.75 0.86
11 B2 3187 2883 2.83 0.99 0.75 0.86
12 B2 1999 1808 933.81 3.68 0.75 0.86
13 B2 1525 1380 12.90 3.58 0.75 0.86
14 B2 1253 1134 718.26 1.02 0.75 0.86
15 B2 779 705 60.90 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10218.0 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 9243.2 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/daug-cc-pVTZ
ABC
1.68877 0.08946 0.08496

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.358
C2 0.000 1.164 -0.315
C3 0.000 -1.164 -0.315
O4 0.000 2.192 0.232
O5 0.000 -2.192 0.232
H6 0.000 1.049 -1.396
H7 0.000 -1.049 -1.396

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.34471.34472.19552.19552.04412.0441
C21.34472.32831.16443.40031.08732.4634
C31.34472.32833.40031.16442.46341.0873
O42.19551.16443.40034.38381.98933.6273
O52.19553.40031.16444.38383.62731.9893
H62.04411.08732.46341.98933.62732.0987
H72.04412.46341.08733.62731.98932.0987

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 121.931 O1 C2 H6 113.974
O1 C3 O5 121.931 C2 O1 C3 119.934
O4 C2 H6 124.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.287      
2 C 0.170      
3 C 0.170      
4 O -1.376      
5 O -1.376      
6 H 1.349      
7 H 1.349      


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 -3.824 3.824
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.240 0.000 0.000
y 0.000 -40.566 0.000
z 0.000 0.000 -25.656
Traceless
 xyz
x 6.871 0.000 0.000
y 0.000 -14.618 0.000
z 0.000 0.000 7.747
Polar
3z2-r215.493
x2-y214.326
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.239 0.000 0.000
y 0.000 6.734 0.000
z 0.000 0.000 4.392


<r2> (average value of r2) Å2
<r2> 121.562
(<r2>)1/2 11.026