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

using model chemistry: M06-2X/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at M06-2X/6-311G**
 hartrees
Energy at 0K-430.671190
Energy at 298.15K 
HF Energy-430.671190
Nuclear repulsion energy342.414625
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 M06-2X/6-311G**
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 3246 3246 0.00 264.92 0.17 0.30
2 Ag 1699 1699 0.00 4.59 0.64 0.78
3 Ag 1324 1324 0.00 20.24 0.10 0.19
4 Ag 1156 1156 0.00 6.65 0.68 0.81
5 Ag 885 885 0.00 32.66 0.09 0.17
6 Ag 459 459 0.00 4.62 0.49 0.66
7 Au 974 974 0.00 0.00 0.00 0.00
8 Au 435 435 0.00 0.00 0.00 0.00
9 B1g 827 827 0.00 0.34 0.75 0.86
10 B1u 3232 3232 1.90 0.00 0.00 0.00
11 B1u 1571 1571 287.35 0.00 0.00 0.00
12 B1u 1258 1258 157.03 0.00 0.00 0.00
13 B1u 1029 1029 3.46 0.00 0.00 0.00
14 B1u 759 759 57.05 0.00 0.00 0.00
15 B2g 945 945 0.00 0.41 0.75 0.86
16 B2g 712 712 0.00 0.29 0.75 0.86
17 B2g 388 388 0.00 3.70 0.75 0.86
18 B2u 3245 3245 0.44 0.00 0.17 0.30
19 B2u 1462 1462 0.76 0.00 0.00 0.00
20 B2u 1320 1320 0.76 0.00 0.10 0.00
21 B2u 1102 1102 14.63 0.00 0.00 0.00
22 B2u 351 351 5.24 0.00 0.00 0.00
23 B3g 3235 3235 0.00 117.56 0.75 0.86
24 B3g 1690 1690 0.00 8.24 0.75 0.86
25 B3g 1293 1293 0.00 1.40 0.75 0.86
26 B3g 648 648 0.00 8.12 0.75 0.86
27 B3g 449 449 0.00 0.05 0.75 0.86
28 B3u 865 865 95.14 0.00 0.00 0.00
29 B3u 524 524 18.67 0.00 0.00 0.00
30 B3u 163 163 1.77 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18622.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18622.3 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 M06-2X/6-311G**
ABC
0.18988 0.04780 0.03819

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.364
C2 0.000 0.000 -1.364
C3 0.000 1.211 0.695
C4 0.000 -1.211 0.695
C5 0.000 -1.211 -0.695
C6 0.000 1.211 -0.695
F7 0.000 0.000 2.707
F8 0.000 0.000 -2.707
H9 0.000 2.133 1.262
H10 0.000 -2.133 1.262
H11 0.000 -2.133 -1.262
H12 0.000 2.133 -1.262

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.72871.38411.38412.38912.38911.34234.07102.13542.13543.38333.3833
C22.72872.38912.38911.38411.38414.07101.34233.38333.38332.13542.1354
C31.38412.38912.42282.79301.38962.34843.61081.08213.39213.87472.1629
C41.38412.38912.42281.38962.79302.34843.61083.39211.08212.16293.8747
C52.38911.38412.79301.38962.42283.61082.34843.87472.16291.08213.3921
C62.38911.38411.38962.79302.42283.61082.34842.16293.87473.39211.0821
F71.34234.07102.34842.34843.61083.61085.41342.57622.57624.50554.5055
F84.07101.34233.61083.61082.34842.34845.41344.50554.50552.57622.5762
H92.13543.38331.08213.39213.87472.16292.57624.50554.26594.95662.5239
H102.13543.38333.39211.08212.16293.87472.57624.50554.26592.52394.9566
H113.38332.13543.87472.16291.08213.39214.50552.57624.95662.52394.2659
H123.38332.13542.16293.87473.39211.08214.50552.57622.52394.95664.2659

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 118.931 C1 C3 H9 119.461
C1 C4 C5 118.931 C1 C4 H10 119.461
C2 C5 C4 118.931 C2 C5 H11 119.461
C2 C6 C3 118.931 C2 C6 H12 119.461
C3 C1 C4 122.138 C3 C1 F7 118.931
C3 C6 H12 121.608 C4 C1 F7 118.931
C4 C5 H11 121.608 C5 C2 C6 122.138
C5 C2 F8 118.931 C5 C4 H10 121.608
C6 C2 F8 118.931 C6 C3 H9 121.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.240      
2 C 0.240      
3 C -0.151      
4 C -0.151      
5 C -0.151      
6 C -0.151      
7 F -0.243      
8 F -0.243      
9 H 0.153      
10 H 0.153      
11 H 0.153      
12 H 0.153      


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 -46.709 0.000 0.000
y 0.000 -36.754 0.000
z 0.000 0.000 -51.355
Traceless
 xyz
x -2.655 0.000 0.000
y 0.000 12.278 0.000
z 0.000 0.000 -9.623
Polar
3z2-r2-19.246
x2-y2-9.955
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.210 0.000 0.000
y 0.000 10.636 0.000
z 0.000 0.000 10.885


<r2> (average value of r2) Å2
<r2> 253.649
(<r2>)1/2 15.926