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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: HF/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-82.812387
Energy at 298.15K-82.817522
Nuclear repulsion energy176.453705
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/CEP-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 A1 3441 3102 7.99      
2 A1 3416 3079 20.27      
3 A1 1811 1632 19.54      
4 A1 1668 1503 148.23      
5 A1 1382 1246 90.98      
6 A1 1373 1238 1.38      
7 A1 1268 1143 0.51      
8 A1 1118 1008 11.15      
9 A1 809 729 42.09      
10 A1 613 552 6.96      
11 A1 295 266 1.15      
12 A2 1140 1028 0.00      
13 A2 1004 905 0.00      
14 A2 770 694 0.00      
15 A2 601 542 0.00      
16 A2 207 186 0.00      
17 B1 1104 995 4.36      
18 B1 890 803 133.29      
19 B1 501 452 3.12      
20 B1 314 283 0.68      
21 B2 3433 3095 14.09      
22 B2 3392 3057 3.12      
23 B2 1801 1623 4.84      
24 B2 1606 1447 14.91      
25 B2 1405 1266 0.16      
26 B2 1294 1166 28.18      
27 B2 1200 1081 34.30      
28 B2 905 816 18.72      
29 B2 571 515 6.00      
30 B2 455 410 0.97      

Unscaled Zero Point Vibrational Energy (zpe) 19892.3 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 17930.9 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/CEP-31G
ABC
0.10583 0.07263 0.04307

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.698 -0.537
C2 0.000 -0.698 -0.537
C3 0.000 -1.414 0.666
C4 0.000 -0.707 1.887
C5 0.000 0.707 1.887
C6 0.000 1.414 0.666
F7 0.000 1.370 -1.727
F8 0.000 -1.370 -1.727
H9 0.000 -2.486 0.632
H10 0.000 -1.249 2.813
H11 0.000 1.249 2.813
H12 0.000 2.486 0.632

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.39602.43022.80152.42391.39981.36732.38653.39143.87453.39492.1359
C21.39601.39982.42392.80152.43022.38651.36732.13593.39493.87453.3914
C32.43021.39981.41072.44662.82703.67142.39401.07272.15323.42003.8994
C42.80152.42391.41071.41342.44664.16873.67492.17721.07302.16363.4303
C52.42392.80152.44661.41341.41073.67494.16873.43032.16361.07302.1772
C61.39982.43022.82702.44661.41072.39403.67143.89943.42002.15321.0727
F71.36732.38653.67144.16873.67492.39402.74054.52055.24174.54222.6097
F82.38651.36732.39403.67494.16873.67142.74052.60974.54225.24174.5205
H93.39142.13591.07272.17723.43033.89944.52052.60972.50754.32474.9714
H103.87453.39492.15321.07302.16363.42005.24174.54222.50752.49734.3247
H113.39493.87453.42002.16361.07302.15324.54225.24174.32472.49732.5075
H122.13593.39143.89943.43032.17721.07272.60974.52054.97144.32472.5075

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.742 C1 C2 F8 119.451
C1 C6 C5 119.189 C1 C6 H12 118.910
C2 C1 C6 120.742 C2 C1 F7 119.451
C2 C3 C4 119.189 C2 C3 H9 118.910
C3 C2 F8 119.807 C3 C4 C5 120.069
C3 C4 H10 119.592 C4 C3 H9 121.901
C4 C5 C6 120.069 C4 C5 H11 120.338
C5 C4 H10 120.338 C5 C6 H12 121.901
C6 C1 F7 119.807 C6 C5 H11 119.592
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.136      
2 C 0.136      
3 C -0.182      
4 C -0.241      
5 C -0.241      
6 C -0.182      
7 F -0.254      
8 F -0.254      
9 H 0.284      
10 H 0.257      
11 H 0.257      
12 H 0.284      


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 4.421 4.421
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.597 0.000 0.000
y 0.000 -41.868 0.000
z 0.000 0.000 -47.568
Traceless
 xyz
x -2.879 0.000 0.000
y 0.000 5.715 0.000
z 0.000 0.000 -2.835
Polar
3z2-r2-5.670
x2-y2-5.729
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.730 0.000 0.000
y 0.000 10.103 0.000
z 0.000 0.000 10.344


<r2> (average value of r2) Å2
<r2> 187.180
(<r2>)1/2 13.681