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

using model chemistry: HSEh1PBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-430.450476
Energy at 298.15K 
HF Energy-430.450476
Nuclear repulsion energy342.993886
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 HSEh1PBE/cc-pVTZ
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 3228 3103 0.00 287.52 0.17 0.29
2 Ag 1680 1614 0.00 4.93 0.67 0.80
3 Ag 1305 1255 0.00 22.72 0.10 0.18
4 Ag 1160 1115 0.00 7.05 0.66 0.79
5 Ag 880 846 0.00 34.39 0.07 0.13
6 Ag 459 441 0.00 4.68 0.42 0.59
7 Au 974 936 0.00 0.00 0.00 0.00
8 Au 439 422 0.00 0.00 0.00 0.00
9 B1g 821 789 0.00 0.24 0.75 0.86
10 B1u 3214 3089 4.54 0.00 0.00 0.00
11 B1u 1559 1498 271.32 0.00 0.00 0.00
12 B1u 1249 1200 171.78 0.00 0.00 0.00
13 B1u 1032 992 1.75 0.00 0.00 0.00
14 B1u 759 730 58.20 0.00 0.00 0.00
15 B2g 957 919 0.00 0.33 0.75 0.86
16 B2g 726 698 0.00 0.46 0.75 0.86
17 B2g 384 369 0.00 3.46 0.75 0.86
18 B2u 3228 3102 0.18 0.00 0.17 0.00
19 B2u 1459 1402 0.51 0.00 0.00 0.00
20 B2u 1360 1307 0.22 0.00 0.00 0.00
21 B2u 1107 1064 13.02 0.00 0.00 0.00
22 B2u 352 338 3.86 0.00 0.00 0.00
23 B3g 3216 3091 0.00 119.98 0.75 0.86
24 B3g 1676 1611 0.00 7.93 0.75 0.86
25 B3g 1301 1250 0.00 1.70 0.75 0.86
26 B3g 649 624 0.00 6.56 0.75 0.86
27 B3g 450 432 0.00 0.05 0.75 0.86
28 B3u 865 832 79.46 0.00 0.00 0.00
29 B3u 524 503 18.92 0.00 0.00 0.00
30 B3u 161 155 1.37 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18585.7 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 17862.7 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 HSEh1PBE/cc-pVTZ
ABC
0.19070 0.04794 0.03831

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.363
C2 0.000 0.000 -1.363
C3 0.000 1.208 0.693
C4 0.000 -1.208 0.693
C5 0.000 -1.208 -0.693
C6 0.000 1.208 -0.693
F7 0.000 0.000 2.703
F8 0.000 0.000 -2.703
H9 0.000 2.132 1.256
H10 0.000 -2.132 1.256
H11 0.000 -2.132 -1.256
H12 0.000 2.132 -1.256

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.72591.38141.38142.38492.38491.34014.06602.13492.13493.37683.3768
C22.72592.38492.38491.38141.38144.06601.34013.37683.37682.13492.1349
C31.38142.38492.41652.78601.38652.34503.60481.08163.38743.86732.1567
C41.38142.38492.41651.38652.78602.34503.60483.38741.08162.15673.8673
C52.38491.38142.78601.38652.41653.60482.34503.86732.15671.08163.3874
C62.38491.38141.38652.78602.41653.60482.34502.15673.86733.38741.0816
F71.34014.06602.34502.34503.60483.60485.40612.57722.57724.49634.4963
F84.06601.34013.60483.60482.34502.34505.40614.49634.49632.57722.5772
H92.13493.37681.08163.38743.86732.15672.57724.49634.26444.94882.5110
H102.13493.37683.38741.08162.15673.86732.57724.49634.26442.51104.9488
H113.37682.13493.86732.15671.08163.38744.49632.57724.94882.51104.2644
H123.37682.13492.15673.86733.38741.08164.49632.57722.51104.94884.2644

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 118.999 C1 C3 H9 119.680
C1 C4 C5 118.999 C1 C4 H10 119.680
C2 C5 C4 118.999 C2 C5 H11 119.680
C2 C6 C3 118.999 C2 C6 H12 119.680
C3 C1 C4 122.002 C3 C1 F7 118.999
C3 C6 H12 121.321 C4 C1 F7 118.999
C4 C5 H11 121.321 C5 C2 C6 122.002
C5 C2 F8 118.999 C5 C4 H10 121.321
C6 C2 F8 118.999 C6 C3 H9 121.321
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.273      
2 C 0.273      
3 C -0.187      
4 C -0.187      
5 C -0.187      
6 C -0.187      
7 F -0.169      
8 F -0.169      
9 H 0.135      
10 H 0.135      
11 H 0.135      
12 H 0.135      


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 -46.208 0.000 0.000
y 0.000 -36.931 0.000
z 0.000 0.000 -50.451
Traceless
 xyz
x -2.516 0.000 0.000
y 0.000 11.398 0.000
z 0.000 0.000 -8.882
Polar
3z2-r2-17.764
x2-y2-9.277
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.035 0.000 0.000
y 0.000 11.223 0.000
z 0.000 0.000 11.677


<r2> (average value of r2) Å2
<r2> 252.681
(<r2>)1/2 15.896