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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-430.458713
Energy at 298.15K 
HF Energy-430.458713
Nuclear repulsion energy339.372003
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 3289 3289 0.00 257.74 0.15 0.26
2 Ag 1714 1714 0.00 5.61 0.74 0.85
3 Ag 1323 1323 0.00 15.15 0.17 0.29
4 Ag 1192 1192 0.00 9.52 0.69 0.82
5 Ag 887 887 0.00 30.65 0.11 0.20
6 Ag 461 461 0.00 5.18 0.46 0.63
7 Au 1018 1018 0.00 0.00 0.00 0.00
8 Au 450 450 0.00 0.00 0.00 0.00
9 B1g 861 861 0.00 5.08 0.75 0.86
10 B1u 3274 3274 1.31 0.00 0.00 0.00
11 B1u 1593 1593 200.15 0.00 0.00 0.00
12 B1u 1270 1270 99.00 0.00 0.00 0.00
13 B1u 1055 1055 4.15 0.00 0.00 0.00
14 B1u 752 752 44.70 0.00 0.00 0.00
15 B2g 992 992 0.00 2.35 0.75 0.86
16 B2g 719 719 0.00 0.00 0.75 0.86
17 B2g 383 383 0.00 3.66 0.75 0.86
18 B2u 3287 3287 0.17 0.00 0.00 0.00
19 B2u 1479 1479 0.04 0.00 0.00 0.00
20 B2u 1366 1366 0.00 0.00 0.00 0.00
21 B2u 1134 1134 11.05 0.00 0.00 0.00
22 B2u 337 337 7.86 0.00 0.00 0.00
23 B3g 3276 3276 0.00 116.43 0.75 0.86
24 B3g 1708 1708 0.00 10.41 0.75 0.86
25 B3g 1336 1336 0.00 1.72 0.75 0.86
26 B3g 662 662 0.00 7.90 0.75 0.86
27 B3g 440 440 0.00 0.41 0.75 0.86
28 B3u 882 882 117.89 0.00 0.00 0.00
29 B3u 523 523 12.68 0.00 0.00 0.00
30 B3u 163 163 3.71 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18912.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18912.5 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
0.18816 0.04676 0.03745

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 1.363
C2 0.000 0.000 -1.363
C3 0.000 1.217 0.697
C4 0.000 -1.217 0.697
C5 0.000 -1.217 -0.697
C6 0.000 1.217 -0.697
F7 0.000 0.000 2.744
F8 0.000 0.000 -2.744
H9 0.000 2.139 1.264
H10 0.000 -2.139 1.264
H11 0.000 -2.139 -1.264
H12 0.000 2.139 -1.264

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.72511.38741.38742.39272.39271.38184.10692.14102.14103.38713.3871
C22.72512.39272.39271.38741.38744.10691.38183.38713.38712.14102.1410
C31.38742.39272.43502.80601.39452.38183.65061.08163.40383.88722.1668
C41.38742.39272.43501.39452.80602.38183.65063.40381.08162.16683.8872
C52.39271.38742.80601.39452.43503.65062.38183.88722.16681.08163.4038
C62.39271.38741.39452.80602.43503.65062.38182.16683.88723.40381.0816
F71.38184.10692.38182.38183.65063.65065.48882.60112.60114.54324.5432
F84.10691.38183.65063.65062.38182.38185.48884.54324.54322.60112.6011
H92.14103.38711.08163.40383.88722.16682.60114.54324.27754.96862.5279
H102.14103.38713.40381.08162.16683.88722.60114.54324.27752.52794.9686
H113.38712.14103.88722.16681.08163.40384.54322.60114.96862.52794.2775
H123.38712.14102.16683.88723.40381.08164.54322.60112.52794.96864.2775

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 118.655 C1 C3 H9 119.746
C1 C4 C5 118.655 C1 C4 H10 119.746
C2 C5 C4 118.655 C2 C5 H11 119.746
C2 C6 C3 118.655 C2 C6 H12 119.746
C3 C1 C4 122.690 C3 C1 F7 118.655
C3 C6 H12 121.599 C4 C1 F7 118.655
C4 C5 H11 121.599 C5 C2 C6 122.690
C5 C2 F8 118.655 C5 C4 H10 121.599
C6 C2 F8 118.655 C6 C3 H9 121.599
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 0.289      
2 C 0.289      
3 C -0.168      
4 C -0.168      
5 C -0.168      
6 C -0.168      
7 F -0.352      
8 F -0.352      
9 H 0.199      
10 H 0.199      
11 H 0.199      
12 H 0.199      


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 -46.141 0.000 0.000
y 0.000 -36.099 0.000
z 0.000 0.000 -54.372
Traceless
 xyz
x -0.906 0.000 0.000
y 0.000 14.158 0.000
z 0.000 0.000 -13.252
Polar
3z2-r2-26.505
x2-y2-10.042
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.880 0.000 0.000
y 0.000 9.977 0.000
z 0.000 0.000 10.475


<r2> (average value of r2) Å2
<r2> 258.220
(<r2>)1/2 16.069