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-pVQZ

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-pVQZ
 hartrees
Energy at 0K-428.585858
Energy at 298.15K-428.591137
Nuclear repulsion energy351.700645
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-pVQZ
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 3360 3052 2.74      
2 A1 3344 3038 9.84      
3 A1 1792 1628 43.05      
4 A1 1681 1528 214.82      
5 A1 1412 1282 153.78      
6 A1 1310 1190 2.82      
7 A1 1182 1074 0.32      
8 A1 1116 1014 8.60      
9 A1 835 759 34.60      
10 A1 627 569 5.45      
11 A1 314 286 0.36      
12 A2 1115 1013 0.00      
13 A2 975 886 0.00      
14 A2 809 735 0.00      
15 A2 621 564 0.00      
16 A2 211 191 0.00      
17 B1 1072 974 6.23      
18 B1 852 774 95.01      
19 B1 514 467 4.17      
20 B1 326 297 0.00      
21 B2 3354 3047 6.24      
22 B2 3330 3026 1.03      
23 B2 1792 1628 12.30      
24 B2 1614 1466 16.98      
25 B2 1404 1276 9.67      
26 B2 1332 1210 46.76      
27 B2 1206 1096 16.27      
28 B2 926 841 18.95      
29 B2 598 544 5.19      
30 B2 480 436 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 19749.6 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 17942.5 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/aug-cc-pVQZ
ABC
0.11135 0.07612 0.04521

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.683 -0.530
C2 0.000 -0.683 -0.530
C3 0.000 -1.381 0.647
C4 0.000 -0.690 1.838
C5 0.000 0.690 1.838
C6 0.000 1.381 0.647
F7 0.000 1.328 -1.679
F8 0.000 -1.328 -1.679
H9 0.000 -2.451 0.615
H10 0.000 -1.230 2.763
H11 0.000 1.230 2.763
H12 0.000 2.451 0.615

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.36542.37552.73702.36811.36851.31832.31633.33603.80763.33762.1063
C21.36541.36852.36812.73702.37552.31631.31832.10633.33763.80763.3360
C32.37551.36851.37692.38842.76123.57082.32711.07052.12073.35993.8313
C42.73702.36811.37691.37932.38844.05523.57502.14401.07062.13043.3700
C52.36812.73702.38841.37931.37693.57504.05523.37002.13041.07062.1440
C61.36852.37552.76122.38841.37692.32713.57083.83133.35992.12071.0705
F71.31832.31633.57084.05523.57502.32712.65664.42095.12584.44292.5542
F82.31631.31832.32713.57504.05523.57082.65662.55424.44295.12584.4209
H93.33602.10631.07052.14403.37003.83134.42092.55422.47024.26114.9012
H103.80763.33762.12071.07062.13043.35995.12584.44292.47022.45964.2611
H113.33763.80763.35992.13041.07062.12074.44295.12584.26112.45962.4702
H122.10633.33603.83133.37002.14401.07052.55424.42094.90124.26112.4702

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.663 C1 C2 F8 119.324
C1 C6 C5 119.217 C1 C6 H12 118.948
C2 C1 C6 120.663 C2 C1 F7 119.324
C2 C3 C4 119.217 C2 C3 H9 118.948
C3 C2 F8 120.013 C3 C4 C5 120.120
C3 C4 H10 119.579 C4 C3 H9 121.835
C4 C5 C6 120.120 C4 C5 H11 120.301
C5 C4 H10 120.301 C5 C6 H12 121.835
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-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.883      
2 C 0.883      
3 C -0.387      
4 C -0.492      
5 C -0.492      
6 C -0.387      
7 F -0.730      
8 F -0.730      
9 H 0.382      
10 H 0.344      
11 H 0.344      
12 H 0.382      


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 2.713 2.713
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.957 0.000 0.000
y 0.000 -40.739 0.000
z 0.000 0.000 -44.979
Traceless
 xyz
x -4.098 0.000 0.000
y 0.000 5.228 0.000
z 0.000 0.000 -1.131
Polar
3z2-r2-2.261
x2-y2-6.217
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.326 0.000 0.000
y 0.000 11.333 0.000
z 0.000 0.000 11.414


<r2> (average value of r2) Å2
<r2> 225.382
(<r2>)1/2 15.013