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

using model chemistry: wB97X-D/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at wB97X-D/6-31G**
 hartrees
Energy at 0K-430.586540
Energy at 298.15K 
HF Energy-430.586540
Nuclear repulsion energy341.905220
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 wB97X-D/6-31G**
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 3257 3257 0.00 266.99 0.15 0.27
2 Ag 1710 1710 0.00 6.61 0.69 0.82
3 Ag 1329 1329 0.00 15.75 0.16 0.28
4 Ag 1174 1174 0.00 9.17 0.69 0.82
5 Ag 888 888 0.00 31.86 0.10 0.18
6 Ag 460 460 0.00 4.43 0.47 0.64
7 Au 972 972 0.00 0.00 0.00 0.00
8 Au 439 439 0.00 0.00 0.00 0.00
9 B1g 828 828 0.00 5.14 0.75 0.86
10 B1u 3242 3242 5.73 0.00 0.00 0.00
11 B1u 1581 1581 266.16 0.00 0.00 0.00
12 B1u 1273 1273 150.71 0.00 0.00 0.00
13 B1u 1037 1037 2.59 0.00 0.00 0.00
14 B1u 760 760 51.68 0.00 0.00 0.00
15 B2g 946 946 0.00 2.85 0.75 0.86
16 B2g 703 703 0.00 0.14 0.75 0.86
17 B2g 388 388 0.00 4.19 0.75 0.86
18 B2u 3256 3256 1.23 0.00 0.16 0.27
19 B2u 1474 1474 0.78 0.00 0.00 0.00
20 B2u 1347 1347 1.12 0.00 0.19 0.32
21 B2u 1120 1120 13.68 0.00 0.00 0.00
22 B2u 354 354 4.03 0.00 0.00 0.00
23 B3g 3244 3244 0.00 123.58 0.75 0.86
24 B3g 1696 1696 0.00 7.70 0.75 0.86
25 B3g 1309 1309 0.00 2.22 0.75 0.86
26 B3g 654 654 0.00 7.41 0.75 0.86
27 B3g 454 454 0.00 0.10 0.75 0.86
28 B3u 857 857 85.89 0.00 0.00 0.00
29 B3u 525 525 10.10 0.00 0.00 0.00
30 B3u 164 164 1.55 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18719.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18719.7 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 wB97X-D/6-31G**
ABC
0.18926 0.04766 0.03807

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.368
C2 0.000 0.000 -1.368
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 2.711
F8 0.000 0.000 -2.711
H9 0.000 2.139 1.259
H10 0.000 -2.139 1.259
H11 0.000 -2.139 -1.259
H12 0.000 2.139 -1.259

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.73621.38701.38702.39372.39371.34264.07882.14162.14163.38743.3874
C22.73622.39372.39371.38701.38704.07881.34263.38743.38742.14162.1416
C31.38702.39372.42612.79661.39112.35213.61581.08363.39883.87992.1624
C41.38702.39372.42611.39112.79662.35213.61583.39881.08362.16243.8799
C52.39371.38702.79661.39112.42613.61582.35213.87992.16241.08363.3988
C62.39371.38701.39112.79662.42613.61582.35212.16243.87993.39881.0836
F71.34264.07882.35212.35213.61583.61585.42142.58512.58514.50894.5089
F84.07881.34263.61583.61582.35212.35215.42144.50894.50892.58512.5851
H92.14163.38741.08363.39883.87992.16242.58514.50894.27764.96332.5173
H102.14163.38743.39881.08362.16243.87992.58514.50894.27762.51734.9633
H113.38742.14163.87992.16241.08363.39884.50892.58514.96332.51734.2776
H123.38742.14162.16243.87993.39881.08364.50892.58512.51734.96334.2776

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 119.006 C1 C3 H9 119.683
C1 C4 C5 119.006 C1 C4 H10 119.683
C2 C5 C4 119.006 C2 C5 H11 119.683
C2 C6 C3 119.006 C2 C6 H12 119.683
C3 C1 C4 121.989 C3 C1 F7 119.006
C3 C6 H12 121.312 C4 C1 F7 119.006
C4 C5 H11 121.312 C5 C2 C6 121.989
C5 C2 F8 119.006 C5 C4 H10 121.312
C6 C2 F8 119.006 C6 C3 H9 121.312
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.362      
2 C 0.362      
3 C -0.181      
4 C -0.181      
5 C -0.181      
6 C -0.181      
7 F -0.303      
8 F -0.303      
9 H 0.152      
10 H 0.152      
11 H 0.152      
12 H 0.152      


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 -45.405 0.000 0.000
y 0.000 -36.309 0.000
z 0.000 0.000 -49.198
Traceless
 xyz
x -2.651 0.000 0.000
y 0.000 10.992 0.000
z 0.000 0.000 -8.341
Polar
3z2-r2-16.682
x2-y2-9.095
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.465 0.000 0.000
y 0.000 10.446 0.000
z 0.000 0.000 10.757


<r2> (average value of r2) Å2
<r2> 253.539
(<r2>)1/2 15.923