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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-430.580718
Energy at 298.15K 
HF Energy-430.580718
Nuclear repulsion energy341.856766
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 3261 3093 0.00 263.06 0.16 0.27
2 Ag 1713 1624 0.00 6.64 0.69 0.81
3 Ag 1329 1261 0.00 15.41 0.16 0.28
4 Ag 1183 1122 0.00 8.64 0.69 0.82
5 Ag 889 843 0.00 31.37 0.10 0.18
6 Ag 460 437 0.00 4.48 0.47 0.64
7 Au 971 921 0.00 0.00 0.00 0.00
8 Au 439 416 0.00 0.00 0.00 0.00
9 B1g 829 787 0.00 4.86 0.75 0.86
10 B1u 3246 3079 6.34 0.00 0.00 0.00
11 B1u 1587 1505 261.63 0.00 0.00 0.00
12 B1u 1276 1210 155.87 0.00 0.00 0.00
13 B1u 1042 988 2.77 0.00 0.00 0.00
14 B1u 760 721 51.75 0.00 0.00 0.00
15 B2g 949 900 0.00 2.75 0.75 0.86
16 B2g 704 668 0.00 0.14 0.75 0.86
17 B2g 388 368 0.00 4.20 0.75 0.86
18 B2u 3260 3092 1.82 0.00 0.16 0.27
19 B2u 1478 1402 0.64 0.00 0.00 0.00
20 B2u 1348 1278 1.07 0.00 0.17 0.28
21 B2u 1127 1069 13.71 0.00 0.00 0.00
22 B2u 354 336 4.08 0.00 0.00 0.00
23 B3g 3248 3081 0.00 122.35 0.75 0.86
24 B3g 1698 1610 0.00 7.45 0.75 0.86
25 B3g 1320 1252 0.00 2.11 0.75 0.86
26 B3g 654 621 0.00 7.35 0.75 0.86
27 B3g 454 431 0.00 0.10 0.75 0.86
28 B3u 859 815 89.32 0.00 0.00 0.00
29 B3u 525 498 10.37 0.00 0.00 0.00
30 B3u 164 156 1.50 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18756.6 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 17790.6 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 wB97X-D/6-31G*
ABC
0.18923 0.04764 0.03806

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 2.140 1.259
H10 0.000 -2.140 1.259
H11 0.000 -2.140 -1.259
H12 0.000 2.140 -1.259

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.73691.38711.38712.39412.39411.34274.07962.14232.14233.38823.3882
C22.73692.39412.39411.38711.38714.07961.34273.38823.38822.14232.1423
C31.38712.39412.42612.79671.39132.35243.61631.08423.39953.88062.1629
C41.38712.39412.42611.39132.79672.35243.61633.39951.08422.16293.8806
C52.39411.38712.79671.39132.42613.61632.35243.88062.16291.08423.3995
C62.39411.38711.39132.79672.42613.61632.35242.16293.88063.39951.0842
F71.34274.07962.35242.35243.61633.61635.42232.58592.58594.50974.5097
F84.07961.34273.61633.61632.35242.35245.42234.50974.50972.58592.5859
H92.14233.38821.08423.39953.88062.16292.58594.50974.27904.96472.5175
H102.14233.38823.39951.08422.16293.88062.58594.50974.27902.51754.9647
H113.38822.14233.88062.16291.08423.39954.50972.58594.96472.51754.2790
H123.38822.14232.16293.88063.39951.08424.50972.58592.51754.96474.2790

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 119.014 C1 C3 H9 119.695
C1 C4 C5 119.014 C1 C4 H10 119.695
C2 C5 C4 119.014 C2 C5 H11 119.695
C2 C6 C3 119.014 C2 C6 H12 119.695
C3 C1 C4 121.972 C3 C1 F7 119.014
C3 C6 H12 121.291 C4 C1 F7 119.014
C4 C5 H11 121.291 C5 C2 C6 121.972
C5 C2 F8 119.014 C5 C4 H10 121.291
C6 C2 F8 119.014 C6 C3 H9 121.291
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 0.388      
2 C 0.388      
3 C -0.238      
4 C -0.238      
5 C -0.238      
6 C -0.238      
7 F -0.303      
8 F -0.303      
9 H 0.196      
10 H 0.196      
11 H 0.196      
12 H 0.196      


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 -45.445 0.000 0.000
y 0.000 -36.240 0.000
z 0.000 0.000 -49.164
Traceless
 xyz
x -2.743 0.000 0.000
y 0.000 11.064 0.000
z 0.000 0.000 -8.321
Polar
3z2-r2-16.642
x2-y2-9.205
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.422 0.000 0.000
y 0.000 10.376 0.000
z 0.000 0.000 10.722


<r2> (average value of r2) Å2
<r2> 253.595
(<r2>)1/2 15.925