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

using model chemistry: wB97X-D/CEP-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/CEP-31G*
 hartrees
Energy at 0K-84.673136
Energy at 298.15K 
HF Energy-84.673136
Nuclear repulsion energy173.096153
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/CEP-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 3245 3245 0.00 248.79 0.26 0.41
2 Ag 1697 1697 0.00 4.57 0.74 0.85
3 Ag 1295 1295 0.00 16.45 0.13 0.23
4 Ag 1157 1157 0.00 5.68 0.63 0.77
5 Ag 871 871 0.00 40.34 0.12 0.21
6 Ag 441 441 0.00 6.47 0.59 0.74
7 Au 993 993 0.00 0.00 0.00 0.00
8 Au 423 423 0.00 0.00 0.00 0.00
9 B1g 847 847 0.00 8.62 0.75 0.86
10 B1u 3223 3223 11.61 0.00 0.00 0.00
11 B1u 1556 1556 280.80 0.00 0.00 0.00
12 B1u 1230 1230 193.82 0.00 0.00 0.00
13 B1u 1019 1019 14.50 0.00 0.00 0.00
14 B1u 735 735 52.56 0.00 0.00 0.00
15 B2g 965 965 0.00 5.69 0.75 0.86
16 B2g 681 681 0.00 0.03 0.75 0.86
17 B2g 377 377 0.00 6.02 0.75 0.86
18 B2u 3243 3243 10.48 0.00 0.26 0.41
19 B2u 1464 1464 1.78 0.00 0.00 0.00
20 B2u 1367 1367 0.82 0.00 0.00 0.00
21 B2u 1102 1102 16.51 0.00 0.00 0.00
22 B2u 348 348 4.15 0.00 0.00 0.00
23 B3g 3226 3226 0.00 90.65 0.75 0.86
24 B3g 1697 1697 0.00 10.77 0.75 0.86
25 B3g 1294 1294 0.00 0.51 0.75 0.86
26 B3g 628 628 0.00 11.38 0.75 0.86
27 B3g 441 441 0.00 0.01 0.75 0.86
28 B3u 870 870 104.79 0.00 0.00 0.00
29 B3u 519 519 18.31 0.00 0.00 0.00
30 B3u 160 160 1.73 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18557.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18557.4 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/CEP-31G*
ABC
0.18264 0.04664 0.03715

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.383
C2 0.000 0.000 -1.383
C3 0.000 1.236 0.707
C4 0.000 -1.236 0.707
C5 0.000 -1.236 -0.707
C6 0.000 1.236 -0.707
F7 0.000 0.000 2.739
F8 0.000 0.000 -2.739
H9 0.000 2.167 1.274
H10 0.000 -2.167 1.274
H11 0.000 -2.167 -1.274
H12 0.000 2.167 -1.274

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.76681.40921.40922.42862.42861.35534.12212.17012.17013.42953.4295
C22.76682.42862.42861.40921.40924.12211.35533.42953.42952.17012.1701
C31.40922.42862.47262.84831.41402.37833.66081.09043.45063.93842.1893
C41.40922.42862.47261.41402.84832.37833.66083.45061.09042.18933.9384
C52.42861.40922.84831.41402.47263.66082.37833.93842.18931.09043.4506
C62.42861.40921.41402.84832.47263.66082.37832.18933.93843.45061.0904
F71.35534.12212.37832.37833.66083.66085.47742.61562.61564.56104.5610
F84.12211.35533.66083.66082.37832.37835.47744.56104.56102.61562.6156
H92.17013.42951.09043.45063.93842.18932.61564.56104.33475.02862.5489
H102.17013.42953.45061.09042.18933.93842.61564.56104.33472.54895.0286
H113.42952.17013.93842.18931.09043.45064.56102.61565.02862.54894.3347
H123.42952.17012.18933.93843.45061.09044.56102.61562.54895.02864.3347

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 118.684 C1 C3 H9 119.955
C1 C4 C5 118.684 C1 C4 H10 119.955
C2 C5 C4 118.684 C2 C5 H11 119.955
C2 C6 C3 118.684 C2 C6 H12 119.955
C3 C1 C4 122.631 C3 C1 F7 118.684
C3 C6 H12 121.361 C4 C1 F7 118.684
C4 C5 H11 121.361 C5 C2 C6 122.631
C5 C2 F8 118.684 C5 C4 H10 121.361
C6 C2 F8 118.684 C6 C3 H9 121.361
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.062      
2 C 0.062      
3 C -0.272      
4 C -0.272      
5 C -0.272      
6 C -0.272      
7 F -0.141      
8 F -0.141      
9 H 0.312      
10 H 0.312      
11 H 0.312      
12 H 0.312      


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 -46.158 0.000 0.000
y 0.000 -35.594 0.000
z 0.000 0.000 -51.132
Traceless
 xyz
x -2.795 0.000 0.000
y 0.000 13.051 0.000
z 0.000 0.000 -10.256
Polar
3z2-r2-20.513
x2-y2-10.564
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.285 0.000 0.000
y 0.000 10.845 0.000
z 0.000 0.000 11.416


<r2> (average value of r2) Å2
<r2> 205.721
(<r2>)1/2 14.343