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All results from a given calculation for C6H4F2 (1,4-difluorobenzene)

using model chemistry: HSEh1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at HSEh1PBE/6-311G*
 hartrees
Energy at 0K-430.397654
Energy at 298.15K 
HF Energy-430.397654
Nuclear repulsion energy342.322770
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 HSEh1PBE/6-311G*
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 3235 3104 0.00 276.01 0.17 0.30
2 Ag 1690 1622 0.00 5.78 0.62 0.77
3 Ag 1306 1253 0.00 19.96 0.11 0.20
4 Ag 1166 1119 0.00 5.93 0.66 0.80
5 Ag 879 843 0.00 31.84 0.09 0.17
6 Ag 458 440 0.00 4.78 0.47 0.64
7 Au 952 914 0.00 0.00 0.00 0.00
8 Au 436 418 0.00 0.00 0.00 0.00
9 B1g 813 780 0.00 0.47 0.75 0.86
10 B1u 3220 3090 7.99 0.00 0.00 0.00
11 B1u 1565 1502 271.64 0.00 0.00 0.00
12 B1u 1248 1198 173.28 0.00 0.00 0.00
13 B1u 1032 991 3.07 0.00 0.00 0.00
14 B1u 755 725 60.57 0.00 0.00 0.00
15 B2g 933 895 0.00 0.61 0.75 0.86
16 B2g 710 681 0.00 0.34 0.75 0.86
17 B2g 385 369 0.00 3.78 0.75 0.86
18 B2u 3234 3104 2.45 0.00 0.00 0.00
19 B2u 1463 1404 0.76 0.00 0.00 0.00
20 B2u 1366 1311 0.21 0.00 0.00 0.00
21 B2u 1112 1067 15.16 0.00 0.00 0.00
22 B2u 350 336 4.53 0.00 0.00 0.00
23 B3g 3222 3092 0.00 123.93 0.75 0.86
24 B3g 1680 1612 0.00 7.49 0.75 0.86
25 B3g 1304 1251 0.00 1.49 0.75 0.86
26 B3g 649 623 0.00 7.62 0.75 0.86
27 B3g 448 429 0.00 0.09 0.75 0.86
28 B3u 857 822 96.24 0.00 0.00 0.00
29 B3u 522 501 19.41 0.00 0.00 0.00
30 B3u 162 155 1.42 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18575.2 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 17824.7 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 HSEh1PBE/6-311G*
ABC
0.19019 0.04772 0.03815

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.367
C2 0.000 0.000 -1.367
C3 0.000 1.210 0.695
C4 0.000 -1.210 0.695
C5 0.000 -1.210 -0.695
C6 0.000 1.210 -0.695
F7 0.000 0.000 2.709
F8 0.000 0.000 -2.709
H9 0.000 2.136 1.258
H10 0.000 -2.136 1.258
H11 0.000 -2.136 -1.258
H12 0.000 2.136 -1.258

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.73401.38411.38412.39032.39031.34234.07632.13872.13873.38393.3839
C22.73402.39032.39031.38411.38414.07631.34233.38393.38392.13872.1387
C31.38412.39032.41942.78981.38902.35003.61241.08393.39273.87352.1607
C41.38412.39032.41941.38902.78982.35003.61243.39271.08392.16073.8735
C52.39031.38412.78981.38902.41943.61242.35003.87352.16071.08393.3927
C62.39031.38411.38902.78982.41943.61242.35002.16073.87353.39271.0839
F71.34234.07632.35002.35003.61243.61245.41862.58252.58254.50544.5054
F84.07631.34233.61243.61242.35002.35005.41864.50544.50542.58252.5825
H92.13873.38391.08393.39273.87352.16072.58254.50544.27184.95732.5152
H102.13873.38393.39271.08392.16073.87352.58254.50544.27182.51524.9573
H113.38392.13873.87352.16071.08393.39274.50542.58254.95732.51524.2718
H123.38392.13872.16073.87353.39271.08394.50542.58252.51524.95734.2718

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 119.070 C1 C3 H9 119.632
C1 C4 C5 119.070 C1 C4 H10 119.632
C2 C5 C4 119.070 C2 C5 H11 119.632
C2 C6 C3 119.070 C2 C6 H12 119.632
C3 C1 C4 121.860 C3 C1 F7 119.070
C3 C6 H12 121.298 C4 C1 F7 119.070
C4 C5 H11 121.298 C5 C2 C6 121.860
C5 C2 F8 119.070 C5 C4 H10 121.298
C6 C2 F8 119.070 C6 C3 H9 121.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.320      
2 C 0.320      
3 C -0.276      
4 C -0.276      
5 C -0.276      
6 C -0.276      
7 F -0.233      
8 F -0.233      
9 H 0.233      
10 H 0.233      
11 H 0.233      
12 H 0.233      


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 -46.539 0.000 0.000
y 0.000 -36.658 0.000
z 0.000 0.000 -50.490
Traceless
 xyz
x -2.965 0.000 0.000
y 0.000 11.857 0.000
z 0.000 0.000 -8.892
Polar
3z2-r2-17.784
x2-y2-9.881
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.143 0.000 0.000
y 0.000 10.693 0.000
z 0.000 0.000 11.070


<r2> (average value of r2) Å2
<r2> 253.654
(<r2>)1/2 15.927