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

using model chemistry: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-430.900885
Energy at 298.15K 
HF Energy-430.900885
Nuclear repulsion energy341.849752
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 B3LYP/Def2TZVPP
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 3213 3093 0.00 293.61 0.14 0.25
2 Ag 1649 1587 0.00 5.20 0.71 0.83
3 Ag 1269 1222 0.00 26.03 0.06 0.12
4 Ag 1163 1119 0.00 7.23 0.61 0.76
5 Ag 869 836 0.00 36.22 0.06 0.11
6 Ag 458 441 0.00 5.42 0.38 0.55
7 Au 968 931 0.00 0.00 0.00 0.00
8 Au 438 421 0.00 0.00 0.00 0.00
9 B1g 816 786 0.00 0.01 0.75 0.86
10 B1u 3199 3079 4.57 0.00 0.00 0.00
11 B1u 1542 1485 236.42 0.00 0.00 0.00
12 B1u 1229 1183 202.92 0.00 0.00 0.00
13 B1u 1030 992 1.26 0.00 0.00 0.00
14 B1u 748 720 66.26 0.00 0.00 0.00
15 B2g 948 912 0.00 0.11 0.75 0.86
16 B2g 716 689 0.00 0.55 0.75 0.86
17 B2g 376 362 0.00 3.09 0.75 0.86
18 B2u 3212 3092 0.43 0.00 0.00 0.00
19 B2u 1446 1392 0.53 0.00 0.00 0.00
20 B2u 1330 1280 0.01 0.00 0.00 0.00
21 B2u 1109 1067 12.06 0.00 0.00 0.00
22 B2u 348 335 4.28 0.00 0.00 0.00
23 B3g 3201 3081 0.00 117.94 0.75 0.86
24 B3g 1652 1590 0.00 8.59 0.75 0.86
25 B3g 1309 1260 0.00 1.40 0.75 0.86
26 B3g 650 625 0.00 6.59 0.75 0.86
27 B3g 450 433 0.00 0.08 0.75 0.86
28 B3u 859 827 75.41 0.00 0.00 0.00
29 B3u 520 501 19.14 0.00 0.00 0.00
30 B3u 160 154 1.59 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18437.4 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 17747.9 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 B3LYP/Def2TZVPP
ABC
0.18969 0.04759 0.03804

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.364
C2 0.000 0.000 -1.364
C3 0.000 1.212 0.695
C4 0.000 -1.212 0.695
C5 0.000 -1.212 -0.695
C6 0.000 1.212 -0.695
F7 0.000 0.000 2.715
F8 0.000 0.000 -2.715
H9 0.000 2.135 1.256
H10 0.000 -2.135 1.256
H11 0.000 -2.135 -1.256
H12 0.000 2.135 -1.256

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.72771.38401.38402.38922.38921.35094.07862.13792.13793.38013.3801
C22.72772.38922.38921.38401.38404.07861.35093.38013.38012.13792.1379
C31.38402.38922.42372.79431.39052.35523.61891.08053.39383.87452.1592
C41.38402.38922.42371.39052.79432.35523.61893.39381.08052.15923.8745
C52.38921.38402.79431.39052.42373.61892.35523.87452.15921.08053.3938
C62.38921.38401.39052.79432.42373.61892.35522.15923.87453.39381.0805
F71.35094.07862.35522.35523.61893.61895.42952.58562.58564.50894.5089
F84.07861.35093.61893.61892.35522.35525.42954.50894.50892.58562.5856
H92.13793.38011.08053.39383.87452.15922.58564.50894.27044.95492.5130
H102.13793.38013.39381.08052.15923.87452.58564.50894.27042.51304.9549
H113.38012.13793.87452.15921.08053.39384.50892.58564.95492.51304.2704
H123.38012.13792.15923.87453.39381.08054.50892.58562.51304.95494.2704

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 118.885 C1 C3 H9 119.823
C1 C4 C5 118.885 C1 C4 H10 119.823
C2 C5 C4 118.885 C2 C5 H11 119.823
C2 C6 C3 118.885 C2 C6 H12 119.823
C3 C1 C4 122.229 C3 C1 F7 118.885
C3 C6 H12 121.292 C4 C1 F7 118.885
C4 C5 H11 121.292 C5 C2 C6 122.229
C5 C2 F8 118.885 C5 C4 H10 121.292
C6 C2 F8 118.885 C6 C3 H9 121.292
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.245      
2 C 0.245      
3 C -0.152      
4 C -0.152      
5 C -0.152      
6 C -0.152      
7 F -0.212      
8 F -0.212      
9 H 0.136      
10 H 0.136      
11 H 0.136      
12 H 0.136      


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 -46.492 0.000 0.000
y 0.000 -37.386 0.000
z 0.000 0.000 -51.998
Traceless
 xyz
x -1.800 0.000 0.000
y 0.000 11.858 0.000
z 0.000 0.000 -10.059
Polar
3z2-r2-20.117
x2-y2-9.106
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.732 0.000 0.000
y 0.000 11.459 0.000
z 0.000 0.000 12.033


<r2> (average value of r2) Å2
<r2> 254.665
(<r2>)1/2 15.958