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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-430.255646
Energy at 298.15K-430.260226
Nuclear repulsion energy346.212755
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 PBEPBE/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3149 3116 2.73      
2 A1 3134 3101 8.10      
3 A1 1601 1584 22.09      
4 A1 1504 1488 190.80      
5 A1 1355 1341 1.65      
6 A1 1281 1268 92.51      
7 A1 1136 1124 1.23      
8 A1 1021 1010 4.57      
9 A1 760 752 22.74      
10 A1 560 555 2.57      
11 A1 271 268 0.19      
12 A2 919 910 0.00      
13 A2 826 818 0.00      
14 A2 672 666 0.00      
15 A2 550 544 0.00      
16 A2 183 181 0.00      
17 B1 889 879 4.59      
18 B1 741 733 58.16      
19 B1 449 444 1.98      
20 B1 289 286 0.02      
21 B2 3142 3109 4.82      
22 B2 3123 3091 0.59      
23 B2 1602 1586 7.12      
24 B2 1443 1428 10.61      
25 B2 1241 1229 14.96      
26 B2 1194 1182 20.00      
27 B2 1090 1079 17.43      
28 B2 835 827 13.60      
29 B2 535 530 2.34      
30 B2 427 422 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 17960.5 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 17775.5 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 PBEPBE/6-31G(2df,p)
ABC
0.10825 0.07361 0.04382

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.700 -0.542
C2 0.000 -0.700 -0.542
C3 0.000 -1.402 0.663
C4 0.000 -0.700 1.872
C5 0.000 0.700 1.872
C6 0.000 1.402 0.663
F7 0.000 1.354 -1.712
F8 0.000 -1.354 -1.712
H9 0.000 -2.494 0.631
H10 0.000 -1.251 2.815
H11 0.000 1.251 2.815
H12 0.000 2.494 0.631

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.40012.42262.79032.41361.39391.34062.36443.40193.88273.40182.1426
C21.40011.39392.41362.79032.42262.36441.34062.14263.40183.88273.4019
C32.42261.39391.39832.42502.80393.63812.37491.09212.15783.41643.8957
C42.79032.41361.39831.40002.42504.13083.64302.18141.09242.16713.4264
C52.41362.79032.42501.40001.39833.64304.13083.42642.16711.09242.1814
C61.39392.42262.80392.42501.39832.37493.63813.89573.41642.15781.0921
F71.34062.36443.63814.13083.64302.37492.70904.50485.22324.52812.6045
F82.36441.34062.37493.64304.13083.63812.70902.60454.52815.22324.5048
H93.40192.14261.09212.18143.42643.89574.50482.60452.51344.33544.9872
H103.88273.40182.15781.09242.16713.41645.22324.52812.51342.50214.3354
H113.40183.88273.41642.16711.09242.15784.52815.22324.33542.50212.5134
H122.14263.40193.89573.42642.18141.09212.60454.50484.98724.33542.5134

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.235 C1 C2 F8 119.219
C1 C6 C5 119.630 C1 C6 H12 118.544
C2 C1 C6 120.235 C2 C1 F7 119.219
C2 C3 C4 119.630 C2 C3 H9 118.544
C3 C2 F8 120.546 C3 C4 C5 120.135
C3 C4 H10 119.569 C4 C3 H9 121.827
C4 C5 C6 120.135 C4 C5 H11 120.296
C5 C4 H10 120.296 C5 C6 H12 121.827
C6 C1 F7 120.546 C6 C5 H11 119.569
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.149      
2 C 0.149      
3 C -0.240      
4 C -0.110      
5 C -0.110      
6 C -0.240      
7 F -0.033      
8 F -0.033      
9 H 0.123      
10 H 0.112      
11 H 0.112      
12 H 0.123      


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 1.829 1.829
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.133 0.000 0.000
y 0.000 -39.717 0.000
z 0.000 0.000 -42.713
Traceless
 xyz
x -3.918 0.000 0.000
y 0.000 4.206 0.000
z 0.000 0.000 -0.288
Polar
3z2-r2-0.577
x2-y2-5.416
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.286 0.000 0.000
y 0.000 11.245 0.000
z 0.000 0.000 11.647


<r2> (average value of r2) Å2
<r2> 230.628
(<r2>)1/2 15.186