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

using model chemistry: TPSSh/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 TPSSh/6-311G**
 hartrees
Energy at 0K-430.842170
Energy at 298.15K 
HF Energy-430.842170
Nuclear repulsion energy340.887436
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 TPSSh/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 3213 3213 0.00 298.66 0.18 0.30
2 Ag 1649 1649 0.00 6.04 0.66 0.80
3 Ag 1269 1269 0.00 20.21 0.11 0.20
4 Ag 1158 1158 0.00 6.87 0.64 0.78
5 Ag 860 860 0.00 33.42 0.09 0.17
6 Ag 449 449 0.00 5.00 0.46 0.63
7 Au 954 954 0.00 0.00 0.00 0.00
8 Au 430 430 0.00 0.00 0.00 0.00
9 B1g 810 810 0.00 0.55 0.75 0.86
10 B1u 3198 3198 7.28 0.00 0.00 0.00
11 B1u 1537 1537 233.48 0.00 0.00 0.00
12 B1u 1223 1223 191.75 0.00 0.00 0.00
13 B1u 1022 1022 2.24 0.00 0.00 0.00
14 B1u 741 741 63.21 0.00 0.00 0.00
15 B2g 925 925 0.00 0.49 0.75 0.86
16 B2g 694 694 0.00 0.28 0.75 0.86
17 B2g 378 378 0.00 3.67 0.75 0.86
18 B2u 3212 3212 2.15 0.00 0.00 0.00
19 B2u 1440 1440 0.70 0.00 0.00 0.00
20 B2u 1351 1351 0.17 0.00 0.00 0.00
21 B2u 1102 1102 14.03 0.00 0.00 0.00
22 B2u 341 341 4.51 0.00 0.00 0.00
23 B3g 3200 3200 0.00 135.60 0.75 0.86
24 B3g 1650 1650 0.00 7.78 0.75 0.86
25 B3g 1298 1298 0.00 1.68 0.75 0.86
26 B3g 639 639 0.00 7.81 0.75 0.86
27 B3g 435 435 0.00 0.13 0.75 0.86
28 B3u 847 847 84.33 0.00 0.00 0.00
29 B3u 515 515 16.79 0.00 0.00 0.00
30 B3u 159 159 1.58 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18348.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18348.3 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 TPSSh/6-311G**
ABC
0.18855 0.04732 0.03783

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.368
C2 0.000 0.000 -1.368
C3 0.000 1.216 0.697
C4 0.000 -1.216 0.697
C5 0.000 -1.216 -0.697
C6 0.000 1.216 -0.697
F7 0.000 0.000 2.722
F8 0.000 0.000 -2.722
H9 0.000 2.141 1.261
H10 0.000 -2.141 1.261
H11 0.000 -2.141 -1.261
H12 0.000 2.141 -1.261

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.73641.38861.38862.39652.39651.35394.09032.14332.14333.39013.3901
C22.73642.39652.39651.38861.38864.09031.35393.39013.39012.14332.1433
C31.38862.39652.43132.80261.39412.36193.62891.08313.40323.88542.1651
C41.38862.39652.43131.39412.80262.36193.62893.40321.08312.16513.8854
C52.39651.38862.80261.39412.43133.62892.36193.88542.16511.08313.4032
C62.39651.38861.39412.80262.43133.62892.36192.16513.88543.40321.0831
F71.35394.09032.36192.36193.62893.62895.44422.59192.59194.52154.5215
F84.09031.35393.62893.62892.36192.36195.44424.52154.52152.59192.5919
H92.14333.39011.08313.40323.88542.16512.59194.52154.28114.96832.5212
H102.14333.39013.40321.08312.16513.88542.59194.52154.28112.52124.9683
H113.39012.14333.88542.16511.08313.40324.52152.59194.96832.52124.2811
H123.39012.14332.16513.88543.40321.08314.52152.59192.52124.96834.2811

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 118.903 C1 C3 H9 119.745
C1 C4 C5 118.903 C1 C4 H10 119.745
C2 C5 C4 118.903 C2 C5 H11 119.745
C2 C6 C3 118.903 C2 C6 H12 119.745
C3 C1 C4 122.195 C3 C1 F7 118.903
C3 C6 H12 121.352 C4 C1 F7 118.903
C4 C5 H11 121.352 C5 C2 C6 122.195
C5 C2 F8 118.903 C5 C4 H10 121.352
C6 C2 F8 118.903 C6 C3 H9 121.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.256      
2 C 0.256      
3 C -0.124      
4 C -0.124      
5 C -0.124      
6 C -0.124      
7 F -0.241      
8 F -0.241      
9 H 0.117      
10 H 0.117      
11 H 0.117      
12 H 0.117      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.239 0.000 0.000
y 0.000 10.909 0.000
z 0.000 0.000 11.372


<r2> (average value of r2) Å2
<r2> 255.519
(<r2>)1/2 15.985