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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-428.209743
Energy at 298.15K-428.214715
Nuclear repulsion energy345.739873
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 B3PW91/3-21G
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 3251 3125 0.27      
2 A1 3233 3107 6.30      
3 A1 1643 1579 19.79      
4 A1 1576 1515 136.77      
5 A1 1355 1302 3.13      
6 A1 1341 1289 50.34      
7 A1 1222 1175 0.23      
8 A1 1064 1023 6.05      
9 A1 784 753 19.73      
10 A1 602 579 3.32      
11 A1 278 267 0.40      
12 A2 1042 1001 0.00      
13 A2 919 883 0.00      
14 A2 782 752 0.00      
15 A2 593 570 0.00      
16 A2 196 188 0.00      
17 B1 1007 968 15.57      
18 B1 799 768 113.00      
19 B1 498 479 4.88      
20 B1 315 303 0.01      
21 B2 3245 3119 0.97      
22 B2 3219 3094 1.03      
23 B2 1661 1596 3.71      
24 B2 1512 1453 12.14      
25 B2 1326 1274 5.36      
26 B2 1268 1219 17.50      
27 B2 1149 1104 17.17      
28 B2 892 857 12.26      
29 B2 552 531 2.18      
30 B2 443 426 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 18882.7 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 18150.0 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 B3PW91/3-21G
ABC
0.10791 0.07323 0.04362

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.696 -0.535
C2 0.000 -0.696 -0.535
C3 0.000 -1.388 0.666
C4 0.000 -0.697 1.874
C5 0.000 0.697 1.874
C6 0.000 1.388 0.666
F7 0.000 1.365 -1.720
F8 0.000 -1.365 -1.720
H9 0.000 -2.469 0.636
H10 0.000 -1.244 2.809
H11 0.000 1.244 2.809
H12 0.000 2.469 0.636

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.39202.40502.78262.40911.38601.36072.37763.37443.86623.38872.1244
C21.39201.38602.40912.78262.40502.37761.36072.12443.38873.86623.3744
C32.40501.38601.39162.40892.77503.64292.38591.08182.14783.39383.8565
C42.78262.40911.39161.39322.40894.14333.65552.16221.08362.15423.3992
C52.40912.78262.40891.39321.39163.65554.14333.39922.15421.08362.1622
C61.38602.40502.77502.40891.39162.38593.64293.85653.39382.14781.0818
F71.36072.37763.64294.14333.65552.38592.73094.49995.22684.53042.6009
F82.37761.36072.38593.65554.14333.64292.73092.60094.53045.22684.4999
H93.37442.12441.08182.16223.39923.85654.49992.60092.49494.30244.9378
H103.86623.38872.14781.08362.15423.39385.22684.53042.49492.48824.3024
H113.38873.86623.39382.15421.08362.14784.53045.22684.30242.48822.4949
H122.12443.37443.85653.39922.16221.08182.60094.49994.93784.30242.4949

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.929 C1 C2 F8 119.469
C1 C6 C5 120.302 C1 C6 H12 118.307
C2 C1 C6 119.929 C2 C1 F7 119.469
C2 C3 C4 120.302 C2 C3 H9 118.307
C3 C2 F8 120.602 C3 C4 C5 119.769
C3 C4 H10 119.881 C4 C3 H9 121.392
C4 C5 C6 119.769 C4 C5 H11 120.350
C5 C4 H10 120.350 C5 C6 H12 121.392
C6 C1 F7 120.602 C6 C5 H11 119.881
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.270      
2 C 0.270      
3 C -0.251      
4 C -0.219      
5 C -0.219      
6 C -0.251      
7 F -0.283      
8 F -0.283      
9 H 0.252      
10 H 0.231      
11 H 0.231      
12 H 0.252      


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 2.539 2.539
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.772 0.000 0.000
y 0.000 -39.686 0.000
z 0.000 0.000 -43.096
Traceless
 xyz
x -5.381 0.000 0.000
y 0.000 5.248 0.000
z 0.000 0.000 0.133
Polar
3z2-r20.265
x2-y2-7.086
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.354 0.000 0.000
y 0.000 9.832 0.000
z 0.000 0.000 10.294


<r2> (average value of r2) Å2
<r2> 231.661
(<r2>)1/2 15.220