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

using model chemistry: M06-2X/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 M06-2X/6-31G**
 hartrees
Energy at 0K-430.552488
Energy at 298.15K 
HF Energy-430.552488
Nuclear repulsion energy342.000263
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 M06-2X/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 3260 3099 0.00 278.63 0.15 0.27
2 Ag 1716 1631 0.00 6.16 0.68 0.81
3 Ag 1350 1283 0.00 15.16 0.16 0.27
4 Ag 1157 1099 0.00 10.62 0.70 0.83
5 Ag 893 848 0.00 31.48 0.10 0.17
6 Ag 457 435 0.00 4.08 0.48 0.65
7 Au 971 923 0.00 0.00 0.00 0.00
8 Au 436 414 0.00 0.00 0.00 0.00
9 B1g 828 787 0.00 6.14 0.75 0.86
10 B1u 3247 3086 3.47 0.00 0.00 0.00
11 B1u 1587 1509 283.17 0.00 0.00 0.00
12 B1u 1278 1214 131.95 0.00 0.00 0.00
13 B1u 1030 979 2.35 0.00 0.00 0.00
14 B1u 761 723 47.01 0.00 0.00 0.00
15 B2g 944 897 0.00 3.51 0.75 0.86
16 B2g 700 665 0.00 0.12 0.75 0.86
17 B2g 387 368 0.00 4.17 0.75 0.86
18 B2u 3260 3098 0.04 0.00 0.15 0.27
19 B2u 1473 1399 0.47 0.00 0.00 0.00
20 B2u 1337 1270 1.39 0.00 0.00 0.00
21 B2u 1104 1049 12.63 0.00 0.00 0.00
22 B2u 351 333 4.64 0.00 0.00 0.00
23 B3g 3249 3088 0.00 131.17 0.75 0.86
24 B3g 1701 1616 0.00 7.50 0.75 0.86
25 B3g 1293 1229 0.00 2.49 0.75 0.86
26 B3g 648 616 0.00 7.75 0.75 0.86
27 B3g 446 424 0.00 0.07 0.75 0.86
28 B3u 857 815 84.96 0.00 0.00 0.00
29 B3u 521 495 10.19 0.00 0.00 0.00
30 B3u 164 156 1.58 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18701.8 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 17774.2 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 M06-2X/6-31G**
ABC
0.18908 0.04773 0.03811

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.366
C2 0.000 0.000 -1.366
C3 0.000 1.214 0.696
C4 0.000 -1.214 0.696
C5 0.000 -1.214 -0.696
C6 0.000 1.214 -0.696
F7 0.000 0.000 2.708
F8 0.000 0.000 -2.708
H9 0.000 2.137 1.264
H10 0.000 -2.137 1.264
H11 0.000 -2.137 -1.264
H12 0.000 2.137 -1.264

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.73281.38701.38702.39292.39291.34194.07472.13922.13923.38883.3888
C22.73282.39292.39291.38701.38704.07471.34193.38883.38882.13922.1392
C31.38702.39292.42812.79851.39132.35053.61401.08363.39863.88172.1659
C41.38702.39292.42811.39132.79852.35053.61403.39861.08362.16593.8817
C52.39291.38702.79851.39132.42813.61402.35053.88172.16591.08363.3986
C62.39291.38701.39132.79852.42813.61402.35052.16593.88173.39861.0836
F71.34194.07472.35052.35053.61403.61405.41662.57912.57914.51044.5104
F84.07471.34193.61403.61402.35052.35055.41664.51044.51042.57912.5791
H92.13923.38881.08363.39863.88172.16592.57914.51044.27344.96512.5278
H102.13923.38883.39861.08362.16593.88172.57914.51044.27342.52784.9651
H113.38882.13923.88172.16591.08363.39864.51042.57914.96512.52784.2734
H123.38882.13922.16593.88173.39861.08364.51042.57912.52784.96514.2734

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 118.919 C1 C3 H9 119.452
C1 C4 C5 118.919 C1 C4 H10 119.452
C2 C5 C4 118.919 C2 C5 H11 119.452
C2 C6 C3 118.919 C2 C6 H12 119.452
C3 C1 C4 122.161 C3 C1 F7 118.919
C3 C6 H12 121.628 C4 C1 F7 118.919
C4 C5 H11 121.628 C5 C2 C6 122.161
C5 C2 F8 118.919 C5 C4 H10 121.628
C6 C2 F8 118.919 C6 C3 H9 121.628
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.347      
2 C 0.347      
3 C -0.171      
4 C -0.171      
5 C -0.171      
6 C -0.171      
7 F -0.303      
8 F -0.303      
9 H 0.149      
10 H 0.149      
11 H 0.149      
12 H 0.149      


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 -45.705 0.000 0.000
y 0.000 -36.516 0.000
z 0.000 0.000 -49.576
Traceless
 xyz
x -2.659 0.000 0.000
y 0.000 11.124 0.000
z 0.000 0.000 -8.465
Polar
3z2-r2-16.930
x2-y2-9.189
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 10.470 0.000
z 0.000 0.000 10.681


<r2> (average value of r2) Å2
<r2> 253.511
(<r2>)1/2 15.922