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

using model chemistry: wB97X-D/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 wB97X-D/6-311G**
 hartrees
Energy at 0K-430.693850
Energy at 298.15K 
HF Energy-430.693850
Nuclear repulsion energy342.370126
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/6-311G**
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 3234 3093 0.00 271.29 0.18 0.30
2 Ag 1693 1619 0.00 5.48 0.65 0.79
3 Ag 1303 1246 0.00 20.90 0.11 0.19
4 Ag 1168 1117 0.00 6.59 0.67 0.80
5 Ag 880 842 0.00 31.93 0.09 0.17
6 Ag 461 441 0.00 4.84 0.47 0.64
7 Au 977 934 0.00 0.00 0.00 0.00
8 Au 438 419 0.00 0.00 0.00 0.00
9 B1g 827 791 0.00 0.38 0.75 0.86
10 B1u 3218 3078 4.89 0.00 0.00 0.00
11 B1u 1563 1495 270.84 0.00 0.00 0.00
12 B1u 1248 1194 174.13 0.00 0.00 0.00
13 B1u 1033 988 3.02 0.00 0.00 0.00
14 B1u 756 723 63.38 0.00 0.00 0.00
15 B2g 949 907 0.00 0.37 0.75 0.86
16 B2g 716 685 0.00 0.24 0.75 0.86
17 B2g 387 371 0.00 3.80 0.75 0.86
18 B2u 3232 3092 0.49 0.00 0.18 0.30
19 B2u 1462 1399 0.85 0.00 0.00 0.00
20 B2u 1329 1271 0.58 0.00 0.00 0.00
21 B2u 1114 1065 15.38 0.00 0.00 0.00
22 B2u 353 338 4.60 0.00 0.00 0.00
23 B3g 3220 3080 0.00 121.38 0.75 0.86
24 B3g 1685 1612 0.00 8.25 0.75 0.86
25 B3g 1303 1247 0.00 1.51 0.75 0.86
26 B3g 654 625 0.00 7.62 0.75 0.86
27 B3g 455 435 0.00 0.10 0.75 0.86
28 B3u 865 828 91.17 0.00 0.00 0.00
29 B3u 527 504 18.38 0.00 0.00 0.00
30 B3u 163 156 1.69 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18606.2 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 17796.8 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/6-311G**
ABC
0.19011 0.04775 0.03816

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.365
C2 0.000 0.000 -1.365
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 1.257
H10 0.000 -2.135 1.257
H11 0.000 -2.135 -1.257
H12 0.000 2.135 -1.257

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.73081.38381.38382.38902.38901.34334.07412.13772.13773.38173.3817
C22.73082.38902.38901.38381.38384.07411.34333.38173.38172.13772.1377
C31.38382.38902.42042.79061.38892.34983.61191.08253.39213.87282.1596
C41.38382.38902.42041.38892.79062.34983.61193.39211.08252.15963.8728
C52.38901.38382.79061.38892.42043.61192.34983.87282.15961.08253.3921
C62.38901.38381.38892.79062.42043.61192.34982.15963.87283.39211.0825
F71.34334.07412.34982.34983.61193.61195.41732.58162.58164.50394.5039
F84.07411.34333.61193.61192.34982.34985.41734.50394.50392.58162.5816
H92.13773.38171.08253.39213.87282.15962.58164.50394.26994.95512.5143
H102.13773.38173.39211.08252.15963.87282.58164.50394.26992.51434.9551
H113.38172.13773.87282.15961.08253.39214.50392.58164.95512.51434.2699
H123.38172.13772.15963.87283.39211.08254.50392.58162.51434.95514.2699

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 119.674
C1 C4 C5 119.006 C1 C4 H10 119.674
C2 C5 C4 119.006 C2 C5 H11 119.674
C2 C6 C3 119.006 C2 C6 H12 119.674
C3 C1 C4 121.989 C3 C1 F7 119.006
C3 C6 H12 121.321 C4 C1 F7 119.006
C4 C5 H11 121.321 C5 C2 C6 121.989
C5 C2 F8 119.006 C5 C4 H10 121.321
C6 C2 F8 119.006 C6 C3 H9 121.321
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.241      
2 C 0.241      
3 C -0.142      
4 C -0.142      
5 C -0.142      
6 C -0.142      
7 F -0.231      
8 F -0.231      
9 H 0.137      
10 H 0.137      
11 H 0.137      
12 H 0.137      


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 -46.313 0.000 0.000
y 0.000 -36.646 0.000
z 0.000 0.000 -50.877
Traceless
 xyz
x -2.552 0.000 0.000
y 0.000 11.949 0.000
z 0.000 0.000 -9.398
Polar
3z2-r2-18.795
x2-y2-9.667
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.207 0.000 0.000
y 0.000 10.721 0.000
z 0.000 0.000 11.019


<r2> (average value of r2) Å2
<r2> 253.576
(<r2>)1/2 15.924