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

using model chemistry: B97D3/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B97D3/Def2TZVPP
 hartrees
Energy at 0K-430.645336
Energy at 298.15K 
HF Energy-430.645336
Nuclear repulsion energy340.374444
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 B97D3/Def2TZVPP
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 3163 3120 0.00 310.68 0.14 0.25
2 Ag 1605 1583 0.00 5.54 0.70 0.83
3 Ag 1237 1220 0.00 25.95 0.07 0.12
4 Ag 1141 1125 0.00 7.72 0.57 0.73
5 Ag 848 837 0.00 37.20 0.06 0.12
6 Ag 449 442 0.00 5.73 0.37 0.54
7 Au 927 915 0.00 0.00 0.00 0.00
8 Au 424 418 0.00 0.00 0.00 0.00
9 B1g 782 771 0.00 0.01 0.75 0.86
10 B1u 3149 3106 7.90 0.00 0.00 0.00
11 B1u 1503 1482 225.97 0.00 0.00 0.00
12 B1u 1194 1178 207.98 0.00 0.00 0.00
13 B1u 1008 994 0.96 0.00 0.00 0.00
14 B1u 731 721 67.47 0.00 0.00 0.00
15 B2g 907 895 0.00 0.22 0.75 0.86
16 B2g 690 681 0.00 0.56 0.75 0.86
17 B2g 365 360 0.00 3.04 0.75 0.86
18 B2u 3163 3119 2.86 0.00 0.00 0.00
19 B2u 1413 1394 0.73 0.00 0.00 0.00
20 B2u 1334 1315 0.00 0.00 0.00 0.00
21 B2u 1089 1074 11.84 0.00 0.00 0.00
22 B2u 343 338 3.63 0.00 0.00 0.00
23 B3g 3151 3108 0.00 126.60 0.75 0.86
24 B3g 1609 1587 0.00 7.41 0.75 0.86
25 B3g 1278 1261 0.00 1.64 0.75 0.86
26 B3g 635 627 0.00 6.73 0.75 0.86
27 B3g 442 436 0.00 0.10 0.75 0.86
28 B3u 824 813 69.17 0.00 0.00 0.00
29 B3u 502 495 18.79 0.00 0.00 0.00
30 B3u 154 152 1.28 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18029.7 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 17782.7 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 B97D3/Def2TZVPP
ABC
0.18807 0.04717 0.03771

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.370
C2 0.000 0.000 -1.370
C3 0.000 1.217 0.698
C4 0.000 -1.217 0.698
C5 0.000 -1.217 -0.698
C6 0.000 1.217 -0.698
F7 0.000 0.000 2.727
F8 0.000 0.000 -2.727
H9 0.000 2.145 1.259
H10 0.000 -2.145 1.259
H11 0.000 -2.145 -1.259
H12 0.000 2.145 -1.259

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.74041.39041.39042.39952.39951.35684.09722.14782.14783.39353.3935
C22.74042.39952.39951.39041.39044.09721.35683.39353.39352.14782.1478
C31.39042.39952.43392.80561.39562.36613.63461.08473.40853.89012.1660
C41.39042.39952.43391.39562.80562.36613.63463.40851.08472.16603.8901
C52.39951.39042.80561.39562.43393.63462.36613.89012.16601.08473.4085
C62.39951.39041.39562.80562.43393.63462.36612.16603.89013.40851.0847
F71.35684.09722.36612.36613.63463.63465.45402.59892.59894.52684.5268
F84.09721.35683.63463.63462.36612.36615.45404.52684.52682.59892.5989
H92.14783.39351.08473.40853.89012.16602.59894.52684.28994.97472.5188
H102.14783.39353.40851.08472.16603.89012.59894.52684.28992.51884.9747
H113.39352.14783.89012.16601.08473.40854.52682.59894.97472.51884.2899
H123.39352.14782.16603.89013.40851.08474.52682.59892.51884.97474.2899

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 118.922 C1 C3 H9 119.896
C1 C4 C5 118.922 C1 C4 H10 119.896
C2 C5 C4 118.922 C2 C5 H11 119.896
C2 C6 C3 118.922 C2 C6 H12 119.896
C3 C1 C4 122.155 C3 C1 F7 118.922
C3 C6 H12 121.182 C4 C1 F7 118.922
C4 C5 H11 121.182 C5 C2 C6 122.155
C5 C2 F8 118.922 C5 C4 H10 121.182
C6 C2 F8 118.922 C6 C3 H9 121.182
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.242      
2 C 0.242      
3 C -0.125      
4 C -0.125      
5 C -0.125      
6 C -0.125      
7 F -0.187      
8 F -0.187      
9 H 0.097      
10 H 0.097      
11 H 0.097      
12 H 0.097      


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 -46.189 0.000 0.000
y 0.000 -37.327 0.000
z 0.000 0.000 -51.069
Traceless
 xyz
x -1.992 0.000 0.000
y 0.000 11.302 0.000
z 0.000 0.000 -9.311
Polar
3z2-r2-18.621
x2-y2-8.862
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.806 0.000 0.000
y 0.000 11.733 0.000
z 0.000 0.000 12.440


<r2> (average value of r2) Å2
<r2> 256.382
(<r2>)1/2 16.012