return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: HF/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-428.450272
Energy at 298.15K-428.455480
Nuclear repulsion energy349.677361
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/aug-cc-pVDZ
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 3375 3073 2.17      
2 A1 3359 3059 9.50      
3 A1 1802 1641 39.03      
4 A1 1669 1520 215.83      
5 A1 1396 1271 139.05      
6 A1 1311 1194 2.99      
7 A1 1200 1093 0.02      
8 A1 1113 1014 8.13      
9 A1 829 755 39.89      
10 A1 621 565 5.91      
11 A1 311 283 0.40      
12 A2 1073 977 0.00      
13 A2 953 867 0.00      
14 A2 767 699 0.00      
15 A2 606 552 0.00      
16 A2 209 190 0.00      
17 B1 1049 955 6.91      
18 B1 840 765 97.21      
19 B1 504 459 4.15      
20 B1 321 293 0.00      
21 B2 3370 3068 4.91      
22 B2 3345 3046 1.19      
23 B2 1794 1634 10.68      
24 B2 1598 1455 16.55      
25 B2 1380 1257 4.92      
26 B2 1305 1188 47.43      
27 B2 1193 1086 22.09      
28 B2 910 829 17.68      
29 B2 589 537 5.39      
30 B2 472 430 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 19631.3 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 17876.2 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/aug-cc-pVDZ
ABC
0.11017 0.07524 0.04471

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.685 -0.531
C2 0.000 -0.685 -0.531
C3 0.000 -1.388 0.651
C4 0.000 -0.694 1.849
C5 0.000 0.694 1.849
C6 0.000 1.388 0.651
F7 0.000 1.334 -1.690
F8 0.000 -1.334 -1.690
H9 0.000 -2.465 0.617
H10 0.000 -1.238 2.779
H11 0.000 1.238 2.779
H12 0.000 2.465 0.617

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.37032.38632.75062.38001.37491.32882.32863.35283.82833.35612.1180
C21.37031.37492.38002.75062.38632.32861.32882.11803.35613.82833.3528
C32.38631.37491.38492.40182.77593.59052.34171.07762.13383.38023.8531
C42.75062.38001.38491.38722.40184.07923.59692.15761.07782.14383.3903
C52.38002.75062.40181.38721.38493.59694.07923.39032.14381.07782.1576
C61.37492.38632.77592.40181.38492.34173.59053.85313.38022.13381.0776
F71.32882.32863.59054.07923.59692.34172.66874.44515.15694.47072.5696
F82.32861.32882.34173.59694.07923.59052.66872.56964.47075.15694.4451
H93.35282.11801.07762.15763.39033.85314.44512.56962.48614.28794.9300
H103.82833.35612.13381.07782.14383.38025.15694.47072.48612.47584.2879
H113.35613.82833.38022.14381.07782.13384.47075.15694.28792.47582.4861
H122.11803.35283.85313.39032.15761.07762.56964.44514.93004.28792.4861

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.740 C1 C2 F8 119.246
C1 C6 C5 119.170 C1 C6 H12 118.950
C2 C1 C6 120.740 C2 C1 F7 119.246
C2 C3 C4 119.170 C2 C3 H9 118.950
C3 C2 F8 120.013 C3 C4 C5 120.089
C3 C4 H10 119.579 C4 C3 H9 121.879
C4 C5 C6 120.089 C4 C5 H11 120.331
C5 C4 H10 120.331 C5 C6 H12 121.879
C6 C1 F7 120.013 C6 C5 H11 119.579
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.739      
2 C 0.739      
3 C 0.348      
4 C 0.523      
5 C 0.523      
6 C 0.348      
7 F -0.782      
8 F -0.782      
9 H -0.410      
10 H -0.419      
11 H -0.419      
12 H -0.410      


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 2.902 2.902
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.504 0.000 0.000
y 0.000 -40.777 0.000
z 0.000 0.000 -45.228
Traceless
 xyz
x -4.501 0.000 0.000
y 0.000 5.589 0.000
z 0.000 0.000 -1.087
Polar
3z2-r2-2.175
x2-y2-6.727
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.337 0.000 0.000
y 0.000 11.410 0.000
z 0.000 0.000 11.520


<r2> (average value of r2) Å2
<r2> 227.790
(<r2>)1/2 15.093