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

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-430.619314
Energy at 298.15K 
HF Energy-430.619314
Nuclear repulsion energy340.500890
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 B97D3/6-311+G(3df,2p)
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 3157 3116 0.00 314.10 0.14 0.24
2 Ag 1600 1580 0.00 5.69 0.75 0.85
3 Ag 1232 1216 0.00 31.74 0.06 0.11
4 Ag 1141 1126 0.00 8.61 0.53 0.69
5 Ag 845 834 0.00 40.54 0.05 0.10
6 Ag 447 441 0.00 6.10 0.30 0.47
7 Au 936 924 0.00 0.00 0.00 0.00
8 Au 420 415 0.00 0.00 0.00 0.00
9 B1g 786 776 0.00 0.48 0.75 0.86
10 B1u 3140 3099 8.32 0.00 0.00 0.00
11 B1u 1497 1478 221.26 0.00 0.00 0.00
12 B1u 1167 1152 225.43 0.00 0.00 0.00
13 B1u 972 959 17.31 0.00 0.00 0.00
14 B1u 714 704 56.18 0.00 0.00 0.00
15 B2g 914 903 0.00 0.01 0.75 0.86
16 B2g 662 653 0.00 1.20 0.75 0.86
17 B2g 365 360 0.00 2.88 0.75 0.86
18 B2u 3156 3115 2.65 0.00 0.00 0.00
19 B2u 1413 1395 0.99 0.00 0.00 0.00
20 B2u 1333 1316 0.05 0.00 0.00 0.00
21 B2u 1089 1075 10.66 0.00 0.00 0.00
22 B2u 345 340 3.84 0.00 0.00 0.00
23 B3g 3144 3103 0.00 126.33 0.75 0.86
24 B3g 1607 1586 0.00 7.63 0.75 0.86
25 B3g 1278 1262 0.00 1.41 0.75 0.86
26 B3g 631 623 0.00 5.66 0.75 0.86
27 B3g 443 437 0.00 0.04 0.75 0.86
28 B3u 827 816 70.85 0.00 0.00 0.00
29 B3u 500 493 18.73 0.00 0.00 0.00
30 B3u 154 152 1.48 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 17956.9 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 17723.5 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 B97D3/6-311+G(3df,2p)
ABC
0.18807 0.04723 0.03775

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.370
C2 0.000 0.000 -1.370
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 2.725
F8 0.000 0.000 -2.725
H9 0.000 2.145 1.259
H10 0.000 -2.145 1.259
H11 0.000 -2.145 -1.259
H12 0.000 2.145 -1.259

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.73921.39001.39002.39902.39901.35554.09472.14802.14803.39283.3928
C22.73922.39902.39901.39001.39004.09471.35553.39283.39282.14802.1480
C31.39002.39902.43382.80571.39582.36443.63291.08463.40863.89012.1659
C41.39002.39902.43381.39582.80572.36443.63293.40861.08462.16593.8901
C52.39901.39002.80571.39582.43383.63292.36443.89012.16591.08463.4086
C62.39901.39001.39582.80572.43383.63292.36442.16593.89013.40861.0846
F71.35554.09472.36442.36443.63293.63295.45032.59832.59834.52494.5249
F84.09471.35553.63293.63292.36442.36445.45034.52494.52492.59832.5983
H92.14803.39281.08463.40863.89012.16592.59834.52494.29034.97462.5180
H102.14803.39283.40861.08462.16593.89012.59834.52494.29032.51804.9746
H113.39282.14803.89012.16591.08463.40864.52492.59834.97462.51804.2903
H123.39282.14802.16593.89013.40861.08464.52492.59832.51804.97464.2903

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 118.896 C1 C3 H9 119.952
C1 C4 C5 118.896 C1 C4 H10 119.952
C2 C5 C4 118.896 C2 C5 H11 119.952
C2 C6 C3 118.896 C2 C6 H12 119.952
C3 C1 C4 122.208 C3 C1 F7 118.896
C3 C6 H12 121.152 C4 C1 F7 118.896
C4 C5 H11 121.152 C5 C2 C6 122.208
C5 C2 F8 118.896 C5 C4 H10 121.152
C6 C2 F8 118.896 C6 C3 H9 121.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.164      
2 C 0.164      
3 C 0.078      
4 C 0.078      
5 C 0.078      
6 C 0.078      
7 F -0.550      
8 F -0.550      
9 H 0.115      
10 H 0.115      
11 H 0.115      
12 H 0.115      


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 -46.499 0.000 0.000
y 0.000 -37.314 0.000
z 0.000 0.000 -51.798
Traceless
 xyz
x -1.943 0.000 0.000
y 0.000 11.835 0.000
z 0.000 0.000 -9.892
Polar
3z2-r2-19.783
x2-y2-9.185
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.478 0.000 0.000
y 0.000 12.152 0.000
z 0.000 0.000 12.927


<r2> (average value of r2) Å2
<r2> 256.394
(<r2>)1/2 16.012