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

using model chemistry: HSEh1PBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-424.633197
Energy at 298.15K 
HF Energy-424.633197
Nuclear repulsion energy336.255154
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/STO-3G
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 3521 3109 0.00 144.61 0.18 0.31
2 Ag 1804 1593 0.00 24.08 0.74 0.85
3 Ag 1456 1286 0.00 7.13 0.31 0.47
4 Ag 1239 1094 0.00 10.49 0.67 0.80
5 Ag 911 804 0.00 25.60 0.10 0.18
6 Ag 459 405 0.00 3.14 0.49 0.66
7 Au 1034 914 0.00 0.00 0.00 0.00
8 Au 437 386 0.00 0.00 0.00 0.00
9 B1g 881 778 0.00 5.49 0.75 0.86
10 B1u 3501 3092 3.40 0.00 0.00 0.00
11 B1u 1685 1488 197.86 0.00 0.00 0.00
12 B1u 1398 1234 34.92 0.00 0.00 0.00
13 B1u 1067 942 0.57 0.00 0.00 0.00
14 B1u 787 695 8.81 0.00 0.00 0.00
15 B2g 1008 890 0.00 2.72 0.75 0.86
16 B2g 744 657 0.00 0.00 0.75 0.86
17 B2g 381 336 0.00 1.33 0.75 0.86
18 B2u 3518 3107 33.30 0.00 0.00 0.00
19 B2u 1548 1367 0.00 0.00 0.00 0.00
20 B2u 1332 1176 8.67 0.00 0.00 0.00
21 B2u 1180 1042 3.00 0.00 0.00 0.00
22 B2u 342 302 1.47 0.00 0.00 0.00
23 B3g 3506 3096 0.00 81.81 0.75 0.86
24 B3g 1710 1510 0.00 4.39 0.75 0.86
25 B3g 1381 1220 0.00 2.92 0.75 0.86
26 B3g 671 593 0.00 6.05 0.75 0.86
27 B3g 440 389 0.00 0.50 0.75 0.86
28 B3u 870 768 48.64 0.00 0.00 0.00
29 B3u 531 469 3.29 0.00 0.00 0.00
30 B3u 159 141 0.15 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 19749.3 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 17440.6 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/STO-3G
ABC
0.18512 0.04570 0.03665

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.406
C2 0.000 0.000 -1.406
C3 0.000 1.226 0.698
C4 0.000 -1.226 0.698
C5 0.000 -1.226 -0.698
C6 0.000 1.226 -0.698
F7 0.000 0.000 2.771
F8 0.000 0.000 -2.771
H9 0.000 2.169 1.255
H10 0.000 -2.169 1.255
H11 0.000 -2.169 -1.255
H12 0.000 2.169 -1.255

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.81261.41571.41572.43502.43501.36454.17712.17382.17383.43293.4329
C22.81262.43502.43501.41571.41574.17711.36453.43293.43292.17382.1738
C31.41572.43502.45132.82071.39552.40823.67871.09523.43963.91582.1685
C41.41572.43502.45131.39552.82072.40823.67873.43961.09522.16853.9158
C52.43501.41572.82071.39552.45133.67872.40823.91582.16851.09523.4396
C62.43501.41571.39552.82072.45133.67872.40822.16853.91583.43961.0952
F71.36454.17712.40822.40823.67873.67875.54162.64582.64584.57274.5727
F84.17711.36453.67873.67872.40822.40825.54164.57274.57272.64582.6458
H92.17383.43291.09523.43963.91582.16852.64584.57274.33715.01102.5100
H102.17383.43293.43961.09522.16853.91582.64584.57274.33712.51005.0110
H113.43292.17383.91582.16851.09523.43964.57272.64585.01102.51004.3371
H123.43292.17382.16853.91583.43961.09524.57272.64582.51005.01104.3371

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 120.031 C1 C3 H9 119.387
C1 C4 C5 120.031 C1 C4 H10 119.387
C2 C5 C4 120.031 C2 C5 H11 119.387
C2 C6 C3 120.031 C2 C6 H12 119.387
C3 C1 C4 119.938 C3 C1 F7 120.031
C3 C6 H12 120.582 C4 C1 F7 120.031
C4 C5 H11 120.582 C5 C2 C6 119.938
C5 C2 F8 120.031 C5 C4 H10 120.582
C6 C2 F8 120.031 C6 C3 H9 120.582
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.089      
2 C 0.089      
3 C -0.103      
4 C -0.103      
5 C -0.103      
6 C -0.103      
7 F -0.066      
8 F -0.066      
9 H 0.092      
10 H 0.092      
11 H 0.092      
12 H 0.092      


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 -41.292 0.000 0.000
y 0.000 -36.147 0.000
z 0.000 0.000 -41.664
Traceless
 xyz
x -2.386 0.000 0.000
y 0.000 5.330 0.000
z 0.000 0.000 -2.944
Polar
3z2-r2-5.888
x2-y2-5.144
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.977 0.000 0.000
y 0.000 6.975 0.000
z 0.000 0.000 8.486


<r2> (average value of r2) Å2
<r2> 259.567
(<r2>)1/2 16.111