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

using model chemistry: B97D3/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 B97D3/cc-pVTZ
 hartrees
Energy at 0K-430.626360
Energy at 298.15K 
HF Energy-430.626360
Nuclear repulsion energy340.445532
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 B97D3/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 3163 3119 0.00 310.74 0.17 0.29
2 Ag 1608 1585 0.00 5.65 0.68 0.81
3 Ag 1241 1223 0.00 22.20 0.11 0.19
4 Ag 1141 1125 0.00 7.59 0.61 0.76
5 Ag 849 837 0.00 35.05 0.07 0.14
6 Ag 449 442 0.00 5.31 0.40 0.57
7 Au 932 919 0.00 0.00 0.00 0.00
8 Au 425 419 0.00 0.00 0.00 0.00
9 B1g 785 774 0.00 0.53 0.75 0.86
10 B1u 3148 3104 8.89 0.00 0.00 0.00
11 B1u 1505 1483 224.43 0.00 0.00 0.00
12 B1u 1198 1181 195.26 0.00 0.00 0.00
13 B1u 1008 994 0.59 0.00 0.00 0.00
14 B1u 732 722 64.90 0.00 0.00 0.00
15 B2g 915 902 0.00 0.51 0.75 0.86
16 B2g 695 686 0.00 0.42 0.75 0.86
17 B2g 367 362 0.00 3.51 0.75 0.86
18 B2u 3162 3118 3.72 0.00 0.00 0.00
19 B2u 1414 1394 0.59 0.00 0.00 0.00
20 B2u 1334 1316 0.01 0.00 0.00 0.00
21 B2u 1089 1074 12.29 0.00 0.00 0.00
22 B2u 343 338 3.46 0.00 0.00 0.00
23 B3g 3150 3106 0.00 132.24 0.75 0.86
24 B3g 1610 1587 0.00 7.20 0.75 0.86
25 B3g 1277 1260 0.00 1.89 0.75 0.86
26 B3g 636 627 0.00 6.79 0.75 0.86
27 B3g 442 436 0.00 0.11 0.75 0.86
28 B3u 827 815 70.44 0.00 0.00 0.00
29 B3u 503 496 17.28 0.00 0.00 0.00
30 B3u 155 152 1.26 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18050.9 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 17798.2 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 B97D3/cc-pVTZ
ABC
0.18819 0.04718 0.03772

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.371
C2 0.000 0.000 -1.371
C3 0.000 1.217 0.698
C4 0.000 -1.217 0.698
C5 0.000 -1.217 -0.698
C6 0.000 1.217 -0.698
F7 0.000 0.000 2.726
F8 0.000 0.000 -2.726
H9 0.000 2.144 1.260
H10 0.000 -2.144 1.260
H11 0.000 -2.144 -1.260
H12 0.000 2.144 -1.260

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.74151.39041.39042.39962.39961.35574.09722.14692.14693.39353.3935
C22.74152.39962.39961.39041.39044.09721.35573.39353.39352.14692.1469
C31.39042.39962.43322.80481.39522.36573.63381.08443.40733.88902.1658
C41.39042.39962.43321.39522.80482.36573.63383.40731.08442.16583.8890
C52.39961.39042.80481.39522.43323.63382.36573.88902.16581.08443.4073
C62.39961.39041.39522.80482.43323.63382.36572.16583.88903.40731.0844
F71.35574.09722.36572.36573.63383.63385.45302.59782.59784.52614.5261
F84.09721.35573.63383.63382.36572.36575.45304.52614.52612.59782.5978
H92.14693.39351.08443.40733.88902.16582.59784.52614.28804.97332.5193
H102.14693.39353.40731.08442.16583.88902.59784.52614.28802.51934.9733
H113.39352.14693.88902.16581.08443.40734.52612.59784.97332.51934.2880
H123.39352.14692.16583.88903.40731.08444.52612.59782.51934.97334.2880

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 118.955 C1 C3 H9 119.827
C1 C4 C5 118.955 C1 C4 H10 119.827
C2 C5 C4 118.955 C2 C5 H11 119.827
C2 C6 C3 118.955 C2 C6 H12 119.827
C3 C1 C4 122.089 C3 C1 F7 118.955
C3 C6 H12 121.218 C4 C1 F7 118.955
C4 C5 H11 121.218 C5 C2 C6 122.089
C5 C2 F8 118.955 C5 C4 H10 121.218
C6 C2 F8 118.955 C6 C3 H9 121.218
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.269      
2 C 0.269      
3 C -0.166      
4 C -0.166      
5 C -0.166      
6 C -0.166      
7 F -0.165      
8 F -0.165      
9 H 0.114      
10 H 0.114      
11 H 0.114      
12 H 0.114      


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 -46.014 0.000 0.000
y 0.000 -37.329 0.000
z 0.000 0.000 -50.471
Traceless
 xyz
x -2.114 0.000 0.000
y 0.000 10.914 0.000
z 0.000 0.000 -8.800
Polar
3z2-r2-17.599
x2-y2-8.685
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.090 0.000 0.000
y 0.000 11.594 0.000
z 0.000 0.000 12.210


<r2> (average value of r2) Å2
<r2> 256.150
(<r2>)1/2 16.005