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

using model chemistry: B97D3/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B97D3/6-31G(2df,p)
 hartrees
Energy at 0K-430.488759
Energy at 298.15K 
HF Energy-430.488759
Nuclear repulsion energy340.328309
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 B97D3/6-31G(2df,p)
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 3166 3166 0.00 285.10 0.16 0.27
2 Ag 1611 1611 0.00 6.75 0.68 0.81
3 Ag 1270 1270 0.00 14.51 0.16 0.27
4 Ag 1136 1136 0.00 9.05 0.68 0.81
5 Ag 851 851 0.00 34.37 0.08 0.15
6 Ag 446 446 0.00 4.69 0.40 0.57
7 Au 908 908 0.00 0.00 0.75 0.86
8 Au 420 420 0.00 0.00 0.00 0.00
9 B1g 793 793 0.00 3.94 0.75 0.86
10 B1u 3150 3150 11.12 0.00 0.00 0.00
11 B1u 1505 1505 231.37 0.00 0.00 0.00
12 B1u 1220 1220 160.87 0.00 0.00 0.00
13 B1u 999 999 0.74 0.00 0.00 0.00
14 B1u 737 737 49.16 0.00 0.00 0.00
15 B2g 908 908 0.00 1.98 0.75 0.86
16 B2g 686 686 0.00 0.08 0.75 0.86
17 B2g 372 372 0.00 3.65 0.75 0.86
18 B2u 3164 3164 5.89 0.00 0.00 0.00
19 B2u 1408 1408 0.46 0.00 0.00 0.00
20 B2u 1334 1334 0.24 0.00 0.00 0.00
21 B2u 1082 1082 11.87 0.00 0.00 0.00
22 B2u 343 343 3.03 0.00 0.00 0.00
23 B3g 3152 3152 0.00 130.05 0.75 0.86
24 B3g 1600 1600 0.00 5.41 0.75 0.86
25 B3g 1256 1256 0.00 2.91 0.75 0.86
26 B3g 632 632 0.00 6.91 0.75 0.86
27 B3g 438 438 0.00 0.09 0.75 0.86
28 B3u 823 823 60.29 0.00 0.00 0.00
29 B3u 508 508 10.32 0.00 0.00 0.00
30 B3u 156 156 0.99 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18036.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18036.7 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 B97D3/6-31G(2df,p)
ABC
0.18762 0.04718 0.03770

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.379
C2 0.000 0.000 -1.379
C3 0.000 1.218 0.699
C4 0.000 -1.218 0.699
C5 0.000 -1.218 -0.699
C6 0.000 1.218 -0.699
F7 0.000 0.000 2.724
F8 0.000 0.000 -2.724
H9 0.000 2.148 1.262
H10 0.000 -2.148 1.262
H11 0.000 -2.148 -1.262
H12 0.000 2.148 -1.262

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.75711.39511.39512.40832.40831.34504.10202.15132.15133.40403.4040
C22.75712.40832.40831.39511.39514.10201.34503.40403.40402.15132.1513
C31.39512.40832.43672.80911.39782.36293.63281.08713.41333.89602.1703
C41.39512.40832.43671.39782.80912.36293.63283.41331.08712.17033.8960
C52.40831.39512.80911.39782.43673.63282.36293.89602.17031.08713.4133
C62.40831.39511.39782.80912.43673.63282.36292.17033.89603.41331.0871
F71.34504.10202.36292.36293.63283.63285.44702.59812.59814.52774.5277
F84.10201.34503.63283.63282.36292.36295.44704.52774.52772.59812.5981
H92.15133.40401.08713.41333.89602.17032.59814.52774.29634.98292.5242
H102.15133.40403.41331.08712.17033.89602.59814.52774.29632.52424.9829
H113.40402.15133.89602.17031.08713.41334.52772.59814.98292.52424.2963
H123.40402.15132.17033.89603.41331.08714.52772.59812.52424.98294.2963

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 119.154 C1 C3 H9 119.642
C1 C4 C5 119.154 C1 C4 H10 119.642
C2 C5 C4 119.154 C2 C5 H11 119.642
C2 C6 C3 119.154 C2 C6 H12 119.642
C3 C1 C4 121.692 C3 C1 F7 119.154
C3 C6 H12 121.204 C4 C1 F7 119.154
C4 C5 H11 121.204 C5 C2 C6 121.692
C5 C2 F8 119.154 C5 C4 H10 121.204
C6 C2 F8 119.154 C6 C3 H9 121.204
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.315      
2 C 0.315      
3 C -0.234      
4 C -0.234      
5 C -0.234      
6 C -0.234      
7 F -0.088      
8 F -0.088      
9 H 0.121      
10 H 0.121      
11 H 0.121      
12 H 0.121      


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 -44.885 0.000 0.000
y 0.000 -36.968 0.000
z 0.000 0.000 -48.423
Traceless
 xyz
x -2.189 0.000 0.000
y 0.000 9.685 0.000
z 0.000 0.000 -7.496
Polar
3z2-r2-14.992
x2-y2-7.916
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.282 0.000 0.000
y 0.000 11.071 0.000
z 0.000 0.000 11.703


<r2> (average value of r2) Å2
<r2> 255.619
(<r2>)1/2 15.988