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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-422.806585
Energy at 298.15K-422.811445
Nuclear repulsion energy345.904317
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 HF/STO-3G
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 3747 3060 7.57      
2 A1 3730 3046 1.28      
3 A1 1900 1552 3.32      
4 A1 1814 1481 93.12      
5 A1 1539 1256 15.10      
6 A1 1362 1112 0.41      
7 A1 1210 988 0.10      
8 A1 1150 939 4.09      
9 A1 881 720 3.05      
10 A1 651 531 0.85      
11 A1 285 232 0.56      
12 A2 1197 978 0.00      
13 A2 1049 856 0.00      
14 A2 848 692 0.00      
15 A2 630 514 0.00      
16 A2 213 174 0.00      
17 B1 1150 939 3.38      
18 B1 913 745 29.46      
19 B1 529 432 0.03      
20 B1 331 270 0.81      
21 B2 3737 3052 21.84      
22 B2 3716 3034 1.24      
23 B2 1946 1589 5.00      
24 B2 1743 1423 18.94      
25 B2 1537 1255 5.96      
26 B2 1430 1167 2.69      
27 B2 1289 1052 1.36      
28 B2 976 797 2.40      
29 B2 594 485 3.08      
30 B2 475 387 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 21285.4 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 17379.5 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 HF/STO-3G
ABC
0.10720 0.07360 0.04364

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.699 -0.536
C2 0.000 -0.699 -0.536
C3 0.000 -1.387 0.669
C4 0.000 -0.692 1.863
C5 0.000 0.692 1.863
C6 0.000 1.387 0.669
F7 0.000 1.373 -1.714
F8 0.000 -1.373 -1.714
H9 0.000 -2.462 0.651
H10 0.000 -1.231 2.794
H11 0.000 1.231 2.794
H12 0.000 2.462 0.651

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.39862.40902.77352.39941.38721.35652.38323.37733.84923.37242.1256
C21.39861.38722.39942.77352.40902.38321.35652.12563.37243.84923.3773
C32.40901.38721.38182.39732.77343.64562.38251.07582.13113.37183.8491
C42.77352.39941.38181.38382.39734.12993.64112.14561.07572.13633.3791
C52.39942.77352.39731.38381.38183.64114.12993.37912.13631.07572.1456
C61.38722.40902.77342.39731.38182.38253.64563.84913.37182.13111.0758
F71.35652.38323.64564.12993.64112.38252.74544.50565.20574.51002.6038
F82.38321.35652.38253.64114.12993.64562.74542.60384.51005.20574.5056
H93.37732.12561.07582.14563.37913.84914.50562.60382.47164.27004.9248
H103.84923.37242.13111.07572.13633.37185.20574.51002.47162.46194.2700
H113.37243.84923.37182.13631.07572.13114.51005.20574.27002.46192.4716
H122.12563.37733.84913.37912.14561.07582.60384.50564.92484.27002.4716

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.705 C1 C2 F8 119.763
C1 C6 C5 120.108 C1 C6 H12 118.768
C2 C1 C6 119.705 C2 C1 F7 119.763
C2 C3 C4 120.108 C2 C3 H9 118.768
C3 C2 F8 120.532 C3 C4 C5 120.187
C3 C4 H10 119.740 C4 C3 H9 121.124
C4 C5 C6 120.187 C4 C5 H11 120.073
C5 C4 H10 120.073 C5 C6 H12 121.124
C6 C1 F7 120.532 C6 C5 H11 119.740
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.119      
2 C 0.119      
3 C -0.079      
4 C -0.061      
5 C -0.061      
6 C -0.079      
7 F -0.126      
8 F -0.126      
9 H 0.077      
10 H 0.070      
11 H 0.070      
12 H 0.077      


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 1.706 1.706
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.051 0.000 0.000
y 0.000 -38.881 0.000
z 0.000 0.000 -41.295
Traceless
 xyz
x -0.963 0.000 0.000
y 0.000 2.292 0.000
z 0.000 0.000 -1.330
Polar
3z2-r2-2.659
x2-y2-2.170
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.869 0.000 0.000
y 0.000 6.904 0.000
z 0.000 0.000 7.323


<r2> (average value of r2) Å2
<r2> 229.824
(<r2>)1/2 15.160