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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-311G**
 hartrees
Energy at 0K-430.404780
Energy at 298.15K 
HF Energy-430.404780
Nuclear repulsion energy342.371825
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/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 3233 3105 0.00 281.61 0.17 0.30
2 Ag 1685 1618 0.00 5.73 0.63 0.77
3 Ag 1305 1253 0.00 20.65 0.11 0.20
4 Ag 1157 1111 0.00 6.45 0.67 0.80
5 Ag 878 844 0.00 32.40 0.09 0.17
6 Ag 458 440 0.00 4.73 0.47 0.64
7 Au 961 923 0.00 0.00 0.00 0.00
8 Au 436 418 0.00 0.00 0.00 0.00
9 B1g 815 783 0.00 0.43 0.75 0.86
10 B1u 3218 3091 4.74 0.00 0.00 0.00
11 B1u 1558 1496 275.89 0.00 0.00 0.00
12 B1u 1245 1195 168.42 0.00 0.00 0.00
13 B1u 1027 987 3.06 0.00 0.00 0.00
14 B1u 755 725 60.10 0.00 0.00 0.00
15 B2g 934 897 0.00 0.46 0.75 0.86
16 B2g 709 681 0.00 0.32 0.75 0.86
17 B2g 385 369 0.00 3.73 0.75 0.86
18 B2u 3232 3104 0.20 0.00 0.00 0.00
19 B2u 1457 1399 0.86 0.00 0.00 0.00
20 B2u 1365 1311 0.29 0.00 0.00 0.00
21 B2u 1105 1061 15.09 0.00 0.00 0.00
22 B2u 350 336 4.44 0.00 0.00 0.00
23 B3g 3221 3093 0.00 126.08 0.75 0.86
24 B3g 1678 1611 0.00 7.79 0.75 0.86
25 B3g 1293 1242 0.00 1.64 0.75 0.86
26 B3g 648 622 0.00 7.66 0.75 0.86
27 B3g 447 429 0.00 0.09 0.75 0.86
28 B3u 857 823 89.12 0.00 0.00 0.00
29 B3u 523 502 18.91 0.00 0.00 0.00
30 B3u 162 155 1.53 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18546.4 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 17812.0 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 HSEh1PBE/6-311G**
ABC
0.19016 0.04774 0.03816

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.366
C2 0.000 0.000 -1.366
C3 0.000 1.210 0.694
C4 0.000 -1.210 0.694
C5 0.000 -1.210 -0.694
C6 0.000 1.210 -0.694
F7 0.000 0.000 2.709
F8 0.000 0.000 -2.709
H9 0.000 2.135 1.259
H10 0.000 -2.135 1.259
H11 0.000 -2.135 -1.259
H12 0.000 2.135 -1.259

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.73241.38401.38402.38962.38961.34244.07472.13752.13753.38323.3832
C22.73242.38962.38961.38401.38404.07471.34243.38323.38322.13752.1375
C31.38402.38962.42002.79031.38892.34963.61181.08323.39203.87322.1609
C41.38402.38962.42001.38892.79032.34963.61183.39201.08322.16093.8732
C52.38961.38402.79031.38892.42003.61182.34963.87322.16091.08323.3920
C62.38961.38401.38892.79032.42003.61182.34962.16093.87323.39201.0832
F71.34244.07472.34962.34963.61183.61185.41712.58062.58064.50504.5050
F84.07471.34243.61183.61182.34962.34965.41714.50504.50502.58062.5806
H92.13753.38321.08323.39203.87322.16092.58064.50504.26954.95632.5171
H102.13753.38323.39201.08322.16093.87322.58064.50504.26952.51714.9563
H113.38322.13753.87322.16091.08323.39204.50502.58064.95632.51714.2695
H123.38322.13752.16093.87323.39201.08324.50502.58062.51714.95634.2695

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 119.036 C1 C3 H9 119.581
C1 C4 C5 119.036 C1 C4 H10 119.581
C2 C5 C4 119.036 C2 C5 H11 119.581
C2 C6 C3 119.036 C2 C6 H12 119.581
C3 C1 C4 121.928 C3 C1 F7 119.036
C3 C6 H12 121.383 C4 C1 F7 119.036
C4 C5 H11 121.383 C5 C2 C6 121.928
C5 C2 F8 119.036 C5 C4 H10 121.383
C6 C2 F8 119.036 C6 C3 H9 121.383
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.243      
2 C 0.243      
3 C -0.138      
4 C -0.138      
5 C -0.138      
6 C -0.138      
7 F -0.228      
8 F -0.228      
9 H 0.131      
10 H 0.131      
11 H 0.131      
12 H 0.131      


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 -46.373 0.000 0.000
y 0.000 -36.764 0.000
z 0.000 0.000 -50.555
Traceless
 xyz
x -2.714 0.000 0.000
y 0.000 11.699 0.000
z 0.000 0.000 -8.986
Polar
3z2-r2-17.972
x2-y2-9.609
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.227 0.000 0.000
y 0.000 10.762 0.000
z 0.000 0.000 11.108


<r2> (average value of r2) Å2
<r2> 253.564
(<r2>)1/2 15.924