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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: HF/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-82.958574
Energy at 298.15K-82.963683
Nuclear repulsion energy178.083755
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/CEP-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 3418 3069 7.28      
2 A1 3396 3050 19.06      
3 A1 1817 1631 46.90      
4 A1 1685 1513 233.67      
5 A1 1412 1268 136.49      
6 A1 1332 1196 3.86      
7 A1 1216 1092 0.05      
8 A1 1118 1004 9.32      
9 A1 834 749 41.97      
10 A1 607 545 3.83      
11 A1 306 275 0.49      
12 A2 1104 992 0.00      
13 A2 975 875 0.00      
14 A2 747 671 0.00      
15 A2 597 536 0.00      
16 A2 207 186 0.00      
17 B1 1072 962 4.47      
18 B1 866 778 112.73      
19 B1 494 444 2.72      
20 B1 320 287 0.07      
21 B2 3411 3063 17.66      
22 B2 3375 3031 1.76      
23 B2 1813 1628 12.72      
24 B2 1606 1442 16.84      
25 B2 1390 1248 9.05      
26 B2 1321 1186 52.99      
27 B2 1197 1075 24.02      
28 B2 899 807 16.60      
29 B2 582 523 4.52      
30 B2 463 416 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 19787.3 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 17769.0 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/CEP-31G*
ABC
0.10788 0.07396 0.04388

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.696 -0.544
C2 0.000 -0.696 -0.544
C3 0.000 -1.410 0.656
C4 0.000 -0.704 1.873
C5 0.000 0.704 1.873
C6 0.000 1.410 0.656
F7 0.000 1.347 -1.704
F8 0.000 -1.347 -1.704
H9 0.000 -2.486 0.622
H10 0.000 -1.248 2.802
H11 0.000 1.248 2.802
H12 0.000 2.486 0.622

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.39212.42382.79302.41661.39611.33092.34983.38853.86993.39122.1356
C21.39211.39612.41662.79302.42382.34981.33092.13563.39123.86993.3885
C32.42381.39611.40662.43932.81983.62952.36151.07642.15223.41643.8958
C42.79302.41661.40661.40862.43934.12383.63472.17701.07692.16253.4267
C52.41662.79302.43931.40861.40663.63474.12383.42672.16251.07692.1770
C61.39612.42382.81982.43931.40662.36153.62953.89583.41642.15221.0764
F71.33092.34983.62954.12383.63472.36152.69414.48345.20074.50782.5899
F82.34981.33092.36153.63474.12383.62952.69412.58994.50785.20074.4834
H93.38852.13561.07642.17703.42673.89584.48342.58992.50724.32424.9715
H103.86993.39122.15221.07692.16253.41645.20074.50782.50722.49674.3242
H113.39123.86993.41642.16251.07692.15224.50785.20074.32422.49672.5072
H122.13563.38853.89583.42672.17701.07642.58994.48344.97154.32422.5072

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.751 C1 C2 F8 119.283
C1 C6 C5 119.139 C1 C6 H12 118.913
C2 C1 C6 120.751 C2 C1 F7 119.283
C2 C3 C4 119.139 C2 C3 H9 118.913
C3 C2 F8 119.965 C3 C4 C5 120.109
C3 C4 H10 119.544 C4 C3 H9 121.948
C4 C5 C6 120.109 C4 C5 H11 120.347
C5 C4 H10 120.347 C5 C6 H12 121.948
C6 C1 F7 119.965 C6 C5 H11 119.544
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.201      
2 C 0.201      
3 C -0.261      
4 C -0.299      
5 C -0.299      
6 C -0.261      
7 F -0.216      
8 F -0.216      
9 H 0.299      
10 H 0.277      
11 H 0.277      
12 H 0.299      


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 3.051 3.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.138 0.000 0.000
y 0.000 -40.450 0.000
z 0.000 0.000 -44.734
Traceless
 xyz
x -4.546 0.000 0.000
y 0.000 5.486 0.000
z 0.000 0.000 -0.941
Polar
3z2-r2-1.881
x2-y2-6.688
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.249 0.000 0.000
y 0.000 10.398 0.000
z 0.000 0.000 10.524


<r2> (average value of r2) Å2
<r2> 183.504
(<r2>)1/2 13.546