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All results from a given calculation for C6H4F2 (1,4-difluorobenzene)

using model chemistry: B97D3/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B97D3/6-31G**
 hartrees
Energy at 0K-430.466996
Energy at 298.15K 
HF Energy-430.466996
Nuclear repulsion energy339.300939
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 B97D3/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3179 3179 0.00 294.39 0.16 0.27
2 Ag 1627 1627 0.00 7.67 0.70 0.82
3 Ag 1268 1268 0.00 14.44 0.18 0.30
4 Ag 1143 1143 0.00 9.46 0.68 0.81
5 Ag 855 855 0.00 33.67 0.10 0.18
6 Ag 446 446 0.00 4.85 0.44 0.61
7 Au 911 911 0.00 0.00 0.00 0.00
8 Au 421 421 0.00 0.00 0.00 0.00
9 B1g 778 778 0.00 6.11 0.75 0.86
10 B1u 3164 3164 10.90 0.00 0.00 0.00
11 B1u 1518 1518 225.32 0.00 0.00 0.00
12 B1u 1221 1221 167.27 0.00 0.00 0.00
13 B1u 1005 1005 1.17 0.00 0.00 0.00
14 B1u 733 733 51.89 0.00 0.00 0.00
15 B2g 890 890 0.00 3.25 0.75 0.86
16 B2g 663 663 0.00 0.17 0.75 0.86
17 B2g 368 368 0.00 4.04 0.75 0.86
18 B2u 3178 3178 6.46 0.00 0.00 0.00
19 B2u 1421 1421 0.85 0.00 0.00 0.00
20 B2u 1351 1351 0.14 0.00 0.00 0.00
21 B2u 1090 1090 12.17 0.00 0.00 0.00
22 B2u 341 341 3.38 0.00 0.00 0.00
23 B3g 3166 3166 0.00 137.48 0.75 0.86
24 B3g 1617 1617 0.00 6.66 0.75 0.86
25 B3g 1273 1273 0.00 2.57 0.75 0.86
26 B3g 633 633 0.00 7.71 0.75 0.86
27 B3g 438 438 0.00 0.16 0.75 0.86
28 B3u 808 808 70.65 0.00 0.00 0.00
29 B3u 499 499 9.34 0.00 0.00 0.00
30 B3u 156 156 1.19 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18081.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18081.2 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 B97D3/6-31G**
ABC
0.18663 0.04689 0.03747

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.378
C2 0.000 0.000 -1.378
C3 0.000 1.222 0.700
C4 0.000 -1.222 0.700
C5 0.000 -1.222 -0.700
C6 0.000 1.222 -0.700
F7 0.000 0.000 2.734
F8 0.000 0.000 -2.734
H9 0.000 2.152 1.265
H10 0.000 -2.152 1.265
H11 0.000 -2.152 -1.265
H12 0.000 2.152 -1.265

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.75511.39711.39712.41032.41031.35644.11152.15452.15453.40753.4075
C22.75512.41032.41031.39711.39714.11151.35643.40753.40752.15452.1545
C31.39712.41032.44372.81651.40022.37263.64491.08773.42043.90402.1737
C41.39712.41032.44371.40022.81652.37263.64493.42041.08772.17373.9040
C52.41031.39712.81651.40022.44373.64492.37263.90402.17371.08773.4204
C62.41031.39711.40022.81652.44373.64492.37262.17373.90403.42041.0877
F71.35644.11152.37262.37263.64493.64495.46792.60542.60544.54084.5408
F84.11151.35643.64493.64492.37262.37265.46794.54084.54082.60542.6054
H92.15453.40751.08773.42043.90402.17372.60544.54084.30324.99152.5295
H102.15453.40753.42041.08772.17373.90402.60544.54084.30322.52954.9915
H113.40752.15453.90402.17371.08773.42044.54082.60544.99152.52954.3032
H123.40752.15452.17373.90403.42041.08774.54082.60542.52954.99154.3032

picture of 1,4-difluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C6 119.005 C1 C3 H9 119.725
C1 C4 C5 119.005 C1 C4 H10 119.725
C2 C5 C4 119.005 C2 C5 H11 119.725
C2 C6 C3 119.005 C2 C6 H12 119.725
C3 C1 C4 121.990 C3 C1 F7 119.005
C3 C6 H12 121.270 C4 C1 F7 119.005
C4 C5 H11 121.270 C5 C2 C6 121.990
C5 C2 F8 119.005 C5 C4 H10 121.270
C6 C2 F8 119.005 C6 C3 H9 121.270
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.349      
2 C 0.349      
3 C -0.151      
4 C -0.151      
5 C -0.151      
6 C -0.151      
7 F -0.284      
8 F -0.284      
9 H 0.118      
10 H 0.118      
11 H 0.118      
12 H 0.118      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.190 0.000 0.000
y 0.000 -36.785 0.000
z 0.000 0.000 -48.637
Traceless
 xyz
x -2.479 0.000 0.000
y 0.000 10.129 0.000
z 0.000 0.000 -7.649
Polar
3z2-r2-15.299
x2-y2-8.405
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.512 0.000 0.000
y 0.000 10.796 0.000
z 0.000 0.000 11.349


<r2> (average value of r2) Å2
<r2> 257.013
(<r2>)1/2 16.032