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

using model chemistry: HSEh1PBE/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-430.456463
Energy at 298.15K 
HF Energy-430.456463
Nuclear repulsion energy342.929682
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/aug-cc-pVTZ
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 3228 3105 0.00 294.07 0.13 0.22
2 Ag 1674 1610 0.00 5.08 0.75 0.85
3 Ag 1298 1248 0.00 32.18 0.06 0.12
4 Ag 1158 1114 0.00 7.67 0.60 0.75
5 Ag 878 844 0.00 40.49 0.05 0.09
6 Ag 458 440 0.00 5.29 0.30 0.46
7 Au 970 933 0.00 0.00 0.00 0.00
8 Au 437 421 0.00 0.00 0.00 0.00
9 B1g 820 789 0.00 0.44 0.75 0.86
10 B1u 3213 3090 4.05 0.00 0.00 0.00
11 B1u 1554 1495 273.87 0.00 0.00 0.00
12 B1u 1242 1195 191.55 0.00 0.00 0.00
13 B1u 1031 992 2.25 0.00 0.00 0.00
14 B1u 757 729 62.54 0.00 0.00 0.00
15 B2g 958 921 0.00 0.00 0.75 0.86
16 B2g 720 693 0.00 1.05 0.75 0.86
17 B2g 379 365 0.00 3.09 0.75 0.86
18 B2u 3227 3104 0.03 0.00 0.00 0.00
19 B2u 1456 1401 0.56 0.00 0.00 0.00
20 B2u 1359 1307 0.00 0.00 0.00 0.00
21 B2u 1106 1063 11.36 0.00 0.00 0.00
22 B2u 352 339 4.13 0.00 0.00 0.00
23 B3g 3216 3093 0.00 115.14 0.75 0.86
24 B3g 1674 1610 0.00 8.70 0.75 0.86
25 B3g 1301 1251 0.00 1.40 0.75 0.86
26 B3g 647 623 0.00 5.03 0.75 0.86
27 B3g 449 432 0.00 0.03 0.75 0.86
28 B3u 865 832 75.41 0.00 0.00 0.00
29 B3u 524 504 20.48 0.00 0.00 0.00
30 B3u 160 154 1.52 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18555.6 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 17846.7 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/aug-cc-pVTZ
ABC
0.19059 0.04793 0.03830

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.362
C2 0.000 0.000 -1.362
C3 0.000 1.209 0.693
C4 0.000 -1.209 0.693
C5 0.000 -1.209 -0.693
C6 0.000 1.209 -0.693
F7 0.000 0.000 2.704
F8 0.000 0.000 -2.704
H9 0.000 2.133 1.255
H10 0.000 -2.133 1.255
H11 0.000 -2.133 -1.255
H12 0.000 2.133 -1.255

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.72361.38111.38112.38422.38421.34194.06542.13542.13543.37603.3760
C22.72362.38422.38421.38111.38114.06541.34193.37603.37602.13542.1354
C31.38112.38422.41722.78671.38672.34563.60561.08153.38823.86802.1566
C41.38112.38422.41721.38672.78672.34563.60563.38821.08152.15663.8680
C52.38421.38112.78671.38672.41723.60562.34563.86802.15661.08153.3882
C62.38421.38111.38672.78672.41723.60562.34562.15663.86803.38821.0815
F71.34194.06542.34562.34563.60563.60565.40732.57812.57814.49684.4968
F84.06541.34193.60563.60562.34562.34565.40734.49684.49682.57812.5781
H92.13543.37601.08153.38823.86802.15662.57814.49684.26554.94942.5104
H102.13543.37603.38821.08152.15663.86802.57814.49684.26552.51044.9494
H113.37602.13543.86802.15661.08153.38824.49682.57814.94942.51044.2655
H123.37602.13542.15663.86803.38821.08154.49682.57812.51044.94944.2655

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 118.945 C1 C3 H9 119.759
C1 C4 C5 118.945 C1 C4 H10 119.759
C2 C5 C4 118.945 C2 C5 H11 119.759
C2 C6 C3 118.945 C2 C6 H12 119.759
C3 C1 C4 122.110 C3 C1 F7 118.945
C3 C6 H12 121.296 C4 C1 F7 118.945
C4 C5 H11 121.296 C5 C2 C6 122.110
C5 C2 F8 118.945 C5 C4 H10 121.296
C6 C2 F8 118.945 C6 C3 H9 121.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.572      
2 C 0.572      
3 C -0.571      
4 C -0.571      
5 C -0.571      
6 C -0.571      
7 F -0.446      
8 F -0.446      
9 H 0.508      
10 H 0.508      
11 H 0.508      
12 H 0.508      


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 -46.431 0.000 0.000
y 0.000 -36.986 0.000
z 0.000 0.000 -51.524
Traceless
 xyz
x -2.176 0.000 0.000
y 0.000 11.991 0.000
z 0.000 0.000 -9.815
Polar
3z2-r2-19.630
x2-y2-9.445
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.319 0.000 0.000
y 0.000 11.815 0.000
z 0.000 0.000 12.355


<r2> (average value of r2) Å2
<r2> 253.014
(<r2>)1/2 15.906