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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: B3LYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/3-21G*
 hartrees
Energy at 0K-428.366925
Energy at 298.15K-428.371873
Nuclear repulsion energy345.416760
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/3-21G*
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 3243 3120 0.53      
2 A1 3225 3102 7.82      
3 A1 1633 1571 17.17      
4 A1 1571 1511 127.73      
5 A1 1342 1291 31.72      
6 A1 1327 1277 27.77      
7 A1 1224 1177 0.21      
8 A1 1060 1019 5.36      
9 A1 782 752 19.09      
10 A1 604 581 3.68      
11 A1 277 266 0.40      
12 A2 1040 1001 0.00      
13 A2 918 883 0.00      
14 A2 782 752 0.00      
15 A2 593 571 0.00      
16 A2 196 189 0.00      
17 B1 1005 967 13.54      
18 B1 798 767 97.98      
19 B1 499 480 3.88      
20 B1 314 302 0.00      
21 B2 3237 3114 2.13      
22 B2 3212 3090 1.19      
23 B2 1649 1587 3.53      
24 B2 1513 1456 10.42      
25 B2 1325 1275 5.15      
26 B2 1264 1216 18.05      
27 B2 1147 1104 15.79      
28 B2 892 858 12.61      
29 B2 551 530 2.32      
30 B2 442 425 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 18831.9 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 18116.3 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 B3LYP/3-21G*
ABC
0.10780 0.07305 0.04354

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.697 -0.535
C2 0.000 -0.697 -0.535
C3 0.000 -1.389 0.667
C4 0.000 -0.697 1.876
C5 0.000 0.697 1.876
C6 0.000 1.389 0.667
F7 0.000 1.366 -1.722
F8 0.000 -1.366 -1.722
H9 0.000 -2.469 0.636
H10 0.000 -1.244 2.811
H11 0.000 1.244 2.811
H12 0.000 2.469 0.636

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.39312.40722.78522.41131.38741.36312.38013.37573.86783.39022.1248
C21.39311.38742.41132.78522.40722.38011.36312.12483.39023.86783.3757
C32.40721.38741.39292.41132.77803.64712.38971.08092.14833.39523.8585
C42.78522.41131.39291.39462.41134.14833.66022.16291.08262.15463.4009
C52.41132.78522.41131.39461.39293.66024.14833.40092.15461.08262.1629
C61.38742.40722.77802.41131.39292.38973.64713.85853.39522.14831.0809
F71.36312.38013.64714.14833.66022.38972.73254.50275.23094.53462.6037
F82.38011.36312.38973.66024.14833.64712.73252.60374.53465.23094.5027
H93.37572.12481.08092.16293.40093.85854.50272.60372.49604.30344.9389
H103.86783.39022.14831.08262.15463.39525.23094.53462.49602.48824.3034
H113.39023.86783.39522.15461.08262.14834.53465.23094.30342.48822.4960
H122.12483.37573.85853.40092.16291.08092.60374.50274.93894.30342.4960

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.939 C1 C2 F8 119.425
C1 C6 C5 120.288 C1 C6 H12 118.291
C2 C1 C6 119.939 C2 C1 F7 119.425
C2 C3 C4 120.288 C2 C3 H9 118.291
C3 C2 F8 120.635 C3 C4 C5 119.773
C3 C4 H10 119.893 C4 C3 H9 121.421
C4 C5 C6 119.773 C4 C5 H11 120.334
C5 C4 H10 120.334 C5 C6 H12 121.421
C6 C1 F7 120.635 C6 C5 H11 119.893
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.267      
2 C 0.267      
3 C -0.218      
4 C -0.188      
5 C -0.188      
6 C -0.218      
7 F -0.281      
8 F -0.281      
9 H 0.220      
10 H 0.201      
11 H 0.201      
12 H 0.220      


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 2.495 2.495
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.546 0.000 0.000
y 0.000 -40.102 0.000
z 0.000 0.000 -43.421
Traceless
 xyz
x -4.785 0.000 0.000
y 0.000 4.882 0.000
z 0.000 0.000 -0.097
Polar
3z2-r2-0.194
x2-y2-6.445
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.334 0.000 0.000
y 0.000 9.857 0.000
z 0.000 0.000 10.313


<r2> (average value of r2) Å2
<r2> 232.136
(<r2>)1/2 15.236