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 (1,4-difluorobenzene)

using model chemistry: wB97X-D/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at wB97X-D/STO-3G
 hartrees
Energy at 0K-424.923680
Energy at 298.15K 
HF Energy-424.923680
Nuclear repulsion energy335.874491
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 wB97X-D/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 Ag 3517 3517 0.00 143.24 0.18 0.31
2 Ag 1811 1811 0.00 24.80 0.73 0.85
3 Ag 1447 1447 0.00 7.51 0.26 0.41
4 Ag 1246 1246 0.00 10.50 0.66 0.80
5 Ag 912 912 0.00 25.57 0.10 0.18
6 Ag 460 460 0.00 3.12 0.49 0.66
7 Au 1041 1041 0.00 0.00 0.00 0.00
8 Au 437 437 0.00 0.00 0.00 0.00
9 B1g 889 889 0.00 5.72 0.75 0.86
10 B1u 3497 3497 3.39 0.00 0.00 0.00
11 B1u 1685 1685 192.27 0.00 0.00 0.00
12 B1u 1397 1397 38.47 0.00 0.00 0.00
13 B1u 1071 1071 0.57 0.00 0.00 0.00
14 B1u 786 786 9.37 0.00 0.00 0.00
15 B2g 1014 1014 0.00 2.90 0.75 0.86
16 B2g 748 748 0.00 0.00 0.75 0.86
17 B2g 382 382 0.00 1.35 0.75 0.86
18 B2u 3515 3515 33.71 0.00 0.00 0.00
19 B2u 1547 1547 0.01 0.00 0.00 0.00
20 B2u 1287 1287 10.31 0.00 0.00 0.00
21 B2u 1187 1187 3.48 0.00 0.00 0.00
22 B2u 345 345 1.59 0.00 0.00 0.00
23 B3g 3502 3502 0.00 81.39 0.75 0.86
24 B3g 1718 1718 0.00 4.71 0.75 0.86
25 B3g 1388 1388 0.00 2.95 0.75 0.86
26 B3g 674 674 0.00 6.07 0.75 0.86
27 B3g 446 446 0.00 0.51 0.75 0.86
28 B3u 874 874 47.93 0.00 0.00 0.00
29 B3u 534 534 2.61 0.00 0.00 0.00
30 B3u 160 160 0.22 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 19757.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19757.7 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 wB97X-D/STO-3G
ABC
0.18484 0.04558 0.03656

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.407
C2 0.000 0.000 -1.407
C3 0.000 1.227 0.699
C4 0.000 -1.227 0.699
C5 0.000 -1.227 -0.699
C6 0.000 1.227 -0.699
F7 0.000 0.000 2.775
F8 0.000 0.000 -2.775
H9 0.000 2.170 1.255
H10 0.000 -2.170 1.255
H11 0.000 -2.170 -1.255
H12 0.000 2.170 -1.255

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.81341.41631.41632.43662.43661.36814.18162.17562.17563.43463.4346
C22.81342.43662.43661.41631.41634.18161.36813.43463.43462.17562.1756
C31.41632.43662.45312.82321.39742.41143.68371.09573.44223.91882.1700
C41.41632.43662.45311.39742.82322.41143.68373.44221.09572.17003.9188
C52.43661.41632.82321.39742.45313.68372.41143.91882.17001.09573.4422
C62.43661.41631.39742.82322.45313.68372.41142.17003.91883.44221.0957
F71.36814.18162.41142.41143.68373.68375.54972.64942.64944.57744.5774
F84.18161.36813.68373.68372.41142.41145.54974.57744.57742.64942.6494
H92.17563.43461.09573.44223.91882.17002.64944.57744.34075.01442.5106
H102.17563.43463.44221.09572.17003.91882.64944.57744.34072.51065.0144
H113.43462.17563.91882.17001.09573.44224.57742.64945.01442.51064.3407
H123.43462.17562.17003.91883.44221.09574.57742.64942.51065.01444.3407

picture of 1,4-difluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C6 119.995 C1 C3 H9 119.474
C1 C4 C5 119.995 C1 C4 H10 119.474
C2 C5 C4 119.995 C2 C5 H11 119.474
C2 C6 C3 119.995 C2 C6 H12 119.474
C3 C1 C4 120.010 C3 C1 F7 119.995
C3 C6 H12 120.531 C4 C1 F7 119.995
C4 C5 H11 120.531 C5 C2 C6 120.010
C5 C2 F8 119.995 C5 C4 H10 120.531
C6 C2 F8 119.995 C6 C3 H9 120.531
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.093      
2 C 0.093      
3 C -0.099      
4 C -0.099      
5 C -0.099      
6 C -0.099      
7 F -0.072      
8 F -0.072      
9 H 0.088      
10 H 0.088      
11 H 0.088      
12 H 0.088      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.275 0.000 0.000
y 0.000 -36.236 0.000
z 0.000 0.000 -42.153
Traceless
 xyz
x -2.081 0.000 0.000
y 0.000 5.478 0.000
z 0.000 0.000 -3.398
Polar
3z2-r2-6.795
x2-y2-5.039
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.968 0.000 0.000
y 0.000 7.016 0.000
z 0.000 0.000 8.437


<r2> (average value of r2) Å2
<r2> 260.223
(<r2>)1/2 16.131