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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G4
 hartrees
Energy at 0K-430.539055
Energy at 298.15K-430.544368
HF Energy-430.736067
Nuclear repulsion energy348.050223
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 B3LYP/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 3213 3101 2.93      
2 A1 3198 3086 9.13      
3 A1 1646 1588 24.67      
4 A1 1549 1495 189.17      
5 A1 1340 1293 0.10      
6 A1 1316 1270 104.25      
7 A1 1174 1133 0.79      
8 A1 1047 1011 4.74      
9 A1 780 753 25.45      
10 A1 581 560 3.23      
11 A1 283 273 0.25      
12 A2 962 928 0.00      
13 A2 869 839 0.00      
14 A2 704 679 0.00      
15 A2 568 548 0.00      
16 A2 191 185 0.00      
17 B1 933 900 5.13      
18 B1 775 747 58.79      
19 B1 469 452 1.49      
20 B1 300 290 0.02      
21 B2 3207 3095 5.56      
22 B2 3187 3075 0.81      
23 B2 1646 1589 7.10      
24 B2 1488 1436 11.63      
25 B2 1284 1239 13.07      
26 B2 1232 1189 25.50      
27 B2 1122 1083 16.57      
28 B2 861 831 14.93      
29 B2 552 533 3.01      
30 B2 441 426 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 18459.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 17813.3 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 B3LYP/6-31G(2df,p)
ABC
0.10935 0.07440 0.04428

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.694 -0.537
C2 0.000 -0.694 -0.537
C3 0.000 -1.394 0.658
C4 0.000 -0.696 1.861
C5 0.000 0.696 1.861
C6 0.000 1.394 0.658
F7 0.000 1.346 -1.702
F8 0.000 -1.346 -1.702
H9 0.000 -2.477 0.626
H10 0.000 -1.243 2.797
H11 0.000 1.243 2.797
H12 0.000 2.477 0.626

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.38892.40682.77252.39851.38531.33502.34973.37833.85643.37922.1285
C21.38891.38532.39852.77252.40682.34971.33502.12853.37923.85643.3783
C32.40681.38531.39102.41232.78903.61702.36111.08342.14433.39583.8721
C42.77252.39851.39101.39272.41234.10743.62242.16791.08392.15343.4059
C52.39852.77252.41231.39271.39103.62244.10743.40592.15341.08392.1679
C61.38532.40682.78902.41231.39102.36113.61703.87213.39582.14431.0834
F71.33502.34973.61704.10743.62242.36112.69204.47635.19124.50072.5882
F82.34971.33502.36113.62244.10743.61702.69202.58824.50075.19124.4763
H93.37832.12851.08342.16793.40593.87214.47632.58822.49804.30794.9549
H103.85643.37922.14431.08392.15343.39585.19124.50072.49802.48604.3079
H113.37923.85643.39582.15341.08392.14434.50075.19124.30792.48602.4980
H122.12853.37833.87213.40592.16791.08342.58824.47634.95494.30792.4980

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.347 C1 C2 F8 119.020
C1 C6 C5 119.475 C1 C6 H12 118.696
C2 C1 C6 120.347 C2 C1 F7 119.020
C2 C3 C4 119.475 C2 C3 H9 118.696
C3 C2 F8 120.634 C3 C4 C5 120.178
C3 C4 H10 119.570 C4 C3 H9 121.829
C4 C5 C6 120.178 C4 C5 H11 120.252
C5 C4 H10 120.252 C5 C6 H12 121.829
C6 C1 F7 120.634 C6 C5 H11 119.570
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.172      
2 C 0.172      
3 C -0.232      
4 C -0.103      
5 C -0.103      
6 C -0.232      
7 F -0.064      
8 F -0.064      
9 H 0.120      
10 H 0.108      
11 H 0.108      
12 H 0.120      


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 2.121 2.121
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 228.626
(<r2>)1/2 15.120