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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G3B3
 hartrees
Energy at 0K-430.467306
Energy at 298.15K-430.472594
Nuclear repulsion energy346.790885
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 B3LYP/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 A1 3228 3100 2.07      
2 A1 3213 3086 13.07      
3 A1 1665 1598 21.84      
4 A1 1563 1501 175.65      
5 A1 1357 1303 0.06      
6 A1 1318 1265 113.42      
7 A1 1185 1138 0.67      
8 A1 1054 1012 5.43      
9 A1 783 752 28.58      
10 A1 582 559 3.84      
11 A1 281 270 0.26      
12 A2 969 930 0.00      
13 A2 853 820 0.00      
14 A2 676 649 0.00      
15 A2 560 538 0.00      
16 A2 191 184 0.00      
17 B1 935 898 5.20      
18 B1 767 736 66.76      
19 B1 464 445 1.25      
20 B1 297 286 0.04      
21 B2 3224 3096 6.94      
22 B2 3201 3073 1.59      
23 B2 1665 1599 7.24      
24 B2 1506 1446 10.34      
25 B2 1300 1249 8.38      
26 B2 1241 1191 32.56      
27 B2 1131 1086 17.75      
28 B2 862 828 15.47      
29 B2 550 528 3.29      
30 B2 441 424 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 18530.1 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 17794.4 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 B3LYP/6-31G*
ABC
0.10863 0.07385 0.04396

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.696 -0.536
C2 0.000 -0.696 -0.536
C3 0.000 -1.398 0.661
C4 0.000 -0.698 1.867
C5 0.000 0.698 1.867
C6 0.000 1.398 0.661
F7 0.000 1.351 -1.710
F8 0.000 -1.351 -1.710
H9 0.000 -2.482 0.628
H10 0.000 -1.246 2.805
H11 0.000 1.246 2.805
H12 0.000 2.482 0.628

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.39152.41212.77872.40381.38831.34392.35943.38483.86423.38602.1328
C21.39151.38832.40382.77872.41212.35941.34392.13283.38603.86423.3848
C32.41211.38831.39462.41862.79613.63032.37111.08482.14893.40363.8806
C42.77872.40381.39461.39652.41864.12253.63612.17231.08552.15813.4135
C52.40382.77872.41861.39651.39463.63614.12253.41352.15811.08552.1723
C61.38832.41212.79612.41861.39462.37113.63033.88063.40362.14891.0848
F71.34392.35943.63034.12253.63612.37112.70264.49035.20794.51542.5971
F82.35941.34392.37113.63614.12253.63032.70262.59714.51545.20794.4903
H93.38482.13281.08482.17233.41353.88064.49032.59712.50324.31694.9648
H103.86423.38602.14891.08552.15813.40365.20794.51542.50322.49154.3169
H113.38603.86423.40362.15811.08552.14894.51545.20794.31692.49152.5032
H122.13283.38483.88063.41352.17231.08482.59714.49034.96484.31692.5032

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.391 C1 C2 F8 119.196
C1 C6 C5 119.487 C1 C6 H12 118.657
C2 C1 C6 120.391 C2 C1 F7 119.196
C2 C3 C4 119.487 C2 C3 H9 118.657
C3 C2 F8 120.412 C3 C4 C5 120.121
C3 C4 H10 119.586 C4 C3 H9 121.856
C4 C5 C6 120.121 C4 C5 H11 120.292
C5 C4 H10 120.292 C5 C6 H12 121.856
C6 C1 F7 120.412 C6 C5 H11 119.586
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.317      
2 C 0.317      
3 C -0.201      
4 C -0.130      
5 C -0.130      
6 C -0.201      
7 F -0.284      
8 F -0.284      
9 H 0.155      
10 H 0.142      
11 H 0.142      
12 H 0.155      


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 2.277 2.277
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 230.037
(<r2>)1/2 15.167