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

using model chemistry: HSEh1PBE/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-430.324047
Energy at 298.15K 
HF Energy-430.324047
Nuclear repulsion energy341.455660
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-pVDZ
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 3246 3123 0.00 292.59 0.16 0.27
2 Ag 1699 1634 0.00 5.97 0.64 0.78
3 Ag 1319 1269 0.00 19.43 0.13 0.23
4 Ag 1144 1101 0.00 7.87 0.69 0.82
5 Ag 882 849 0.00 32.02 0.09 0.17
6 Ag 456 438 0.00 4.40 0.47 0.64
7 Au 969 932 0.00 0.00 0.00 0.00
8 Au 437 420 0.00 0.00 0.00 0.00
9 B1g 821 790 0.00 3.02 0.75 0.86
10 B1u 3231 3108 4.58 0.00 0.00 0.00
11 B1u 1563 1504 277.70 0.00 0.00 0.00
12 B1u 1250 1202 148.52 0.00 0.00 0.00
13 B1u 1024 985 3.10 0.00 0.00 0.00
14 B1u 754 726 56.65 0.00 0.00 0.00
15 B2g 952 915 0.00 1.78 0.75 0.86
16 B2g 726 699 0.00 0.12 0.75 0.86
17 B2g 388 373 0.00 4.16 0.75 0.86
18 B2u 3246 3122 0.07 0.00 0.00 0.00
19 B2u 1459 1404 1.05 0.00 0.00 0.00
20 B2u 1389 1336 0.49 0.00 0.00 0.00
21 B2u 1093 1052 15.22 0.00 0.00 0.00
22 B2u 349 336 3.83 0.00 0.00 0.00
23 B3g 3234 3111 0.00 132.24 0.75 0.86
24 B3g 1688 1623 0.00 7.61 0.75 0.86
25 B3g 1279 1230 0.00 2.34 0.75 0.86
26 B3g 645 621 0.00 7.73 0.75 0.86
27 B3g 444 427 0.00 0.09 0.75 0.86
28 B3u 865 832 73.50 0.00 0.00 0.00
29 B3u 530 509 14.78 0.00 0.00 0.00
30 B3u 162 156 1.38 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18622.5 cm-1
Scaled (by 0.9619) Zero Point Vibrational Energy (zpe) 17912.9 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-pVDZ
ABC
0.18911 0.04750 0.03796

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.372
C2 0.000 0.000 -1.372
C3 0.000 1.213 0.696
C4 0.000 -1.213 0.696
C5 0.000 -1.213 -0.696
C6 0.000 1.213 -0.696
F7 0.000 0.000 2.715
F8 0.000 0.000 -2.715
H9 0.000 2.144 1.264
H10 0.000 -2.144 1.264
H11 0.000 -2.144 -1.264
H12 0.000 2.144 -1.264

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.74411.38841.38842.39782.39781.34264.08672.14672.14673.39783.3978
C22.74412.39782.39781.38841.38844.08671.34263.39783.39782.14672.1467
C31.38842.39782.42582.79721.39282.35473.62031.09043.40453.88732.1702
C41.38842.39782.42581.39282.79722.35473.62033.40451.09042.17023.8873
C52.39781.38842.79721.39282.42583.62032.35473.88732.17021.09043.4045
C62.39781.38841.39282.79722.42583.62032.35472.17023.88733.40451.0904
F71.34264.08672.35472.35473.62033.62035.42932.58872.58874.51954.5195
F84.08671.34263.62033.62032.35472.35475.42934.51954.51952.58872.5887
H92.14673.39781.09043.40453.88732.17022.58874.51954.28794.97752.5278
H102.14673.39783.40451.09042.17023.88732.58874.51954.28792.52784.9775
H113.39782.14673.88732.17021.09043.40454.51952.58874.97752.52784.2879
H123.39782.14672.17023.88733.40451.09044.51952.58872.52784.97754.2879

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 119.121 C1 C3 H9 119.515
C1 C4 C5 119.121 C1 C4 H10 119.515
C2 C5 C4 119.121 C2 C5 H11 119.515
C2 C6 C3 119.121 C2 C6 H12 119.515
C3 C1 C4 121.759 C3 C1 F7 119.121
C3 C6 H12 121.364 C4 C1 F7 119.121
C4 C5 H11 121.364 C5 C2 C6 121.759
C5 C2 F8 119.121 C5 C4 H10 121.364
C6 C2 F8 119.121 C6 C3 H9 121.364
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.145      
2 C 0.145      
3 C -0.015      
4 C -0.015      
5 C -0.015      
6 C -0.015      
7 F -0.171      
8 F -0.171      
9 H 0.028      
10 H 0.028      
11 H 0.028      
12 H 0.028      


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 -46.056 0.000 0.000
y 0.000 -36.965 0.000
z 0.000 0.000 -49.567
Traceless
 xyz
x -2.789 0.000 0.000
y 0.000 10.846 0.000
z 0.000 0.000 -8.057
Polar
3z2-r2-16.113
x2-y2-9.090
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.737 0.000 0.000
y 0.000 10.823 0.000
z 0.000 0.000 11.065


<r2> (average value of r2) Å2
<r2> 254.566
(<r2>)1/2 15.955