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

using model chemistry: B97D3/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B97D3/6-311G*
 hartrees
Energy at 0K-430.574808
Energy at 298.15K 
HF Energy-430.574808
Nuclear repulsion energy339.690340
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 B97D3/6-311G*
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 3159 3159 0.00 300.02 0.18 0.30
2 Ag 1616 1616 0.00 6.45 0.64 0.78
3 Ag 1241 1241 0.00 19.35 0.12 0.21
4 Ag 1144 1144 0.00 6.43 0.62 0.77
5 Ag 847 847 0.00 32.81 0.09 0.17
6 Ag 447 447 0.00 5.34 0.45 0.62
7 Au 907 907 0.00 0.00 0.00 0.00
8 Au 422 422 0.00 0.00 0.00 0.00
9 B1g 775 775 0.00 0.85 0.75 0.86
10 B1u 3143 3143 14.35 0.00 0.00 0.00
11 B1u 1508 1508 224.98 0.00 0.00 0.00
12 B1u 1198 1198 193.61 0.00 0.00 0.00
13 B1u 1007 1007 1.36 0.00 0.00 0.00
14 B1u 728 728 66.17 0.00 0.00 0.00
15 B2g 891 891 0.00 0.87 0.75 0.86
16 B2g 679 679 0.00 0.30 0.75 0.86
17 B2g 368 368 0.00 3.78 0.75 0.86
18 B2u 3157 3157 10.77 0.00 0.00 0.00
19 B2u 1417 1417 0.71 0.00 0.00 0.00
20 B2u 1338 1338 0.01 0.00 0.00 0.00
21 B2u 1092 1092 14.29 0.00 0.00 0.00
22 B2u 340 340 4.07 0.00 0.00 0.00
23 B3g 3145 3145 0.00 137.86 0.75 0.86
24 B3g 1611 1611 0.00 6.72 0.75 0.86
25 B3g 1278 1278 0.00 1.74 0.75 0.86
26 B3g 635 635 0.00 7.80 0.75 0.86
27 B3g 440 440 0.00 0.18 0.75 0.86
28 B3u 817 817 86.25 0.00 0.00 0.00
29 B3u 501 501 17.76 0.00 0.00 0.00
30 B3u 155 155 1.28 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18002.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18002.4 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 B97D3/6-311G*
ABC
0.18753 0.04694 0.03754

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.375
C2 0.000 0.000 -1.375
C3 0.000 1.219 0.699
C4 0.000 -1.219 0.699
C5 0.000 -1.219 -0.699
C6 0.000 1.219 -0.699
F7 0.000 0.000 2.733
F8 0.000 0.000 -2.733
H9 0.000 2.149 1.262
H10 0.000 -2.149 1.262
H11 0.000 -2.149 -1.262
H12 0.000 2.149 -1.262

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.75061.39371.39372.40582.40581.35784.10842.15182.15183.40213.4021
C22.75062.40582.40581.39371.39374.10841.35783.40213.40212.15182.1518
C31.39372.40582.43722.80981.39812.37113.64211.08743.41423.89702.1708
C41.39372.40582.43721.39812.80982.37113.64213.41421.08742.17083.8970
C52.40581.39372.80981.39812.43723.64212.37113.89702.17081.08743.4142
C62.40581.39371.39812.80982.43723.64212.37112.17083.89703.41421.0874
F71.35784.10842.37112.37113.64213.64215.46622.60392.60394.53664.5366
F84.10841.35783.64213.64212.37112.37115.46624.53664.53662.60392.6039
H92.15183.40211.08743.41423.89702.17082.60394.53664.29764.98432.5247
H102.15183.40213.41421.08742.17083.89702.60394.53664.29762.52474.9843
H113.40212.15183.89702.17081.08743.41424.53662.60394.98432.52474.2976
H123.40212.15182.17083.89703.41421.08744.53662.60392.52474.98434.2976

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 119.027 C1 C3 H9 119.775
C1 C4 C5 119.027 C1 C4 H10 119.775
C2 C5 C4 119.027 C2 C5 H11 119.775
C2 C6 C3 119.027 C2 C6 H12 119.775
C3 C1 C4 121.947 C3 C1 F7 119.027
C3 C6 H12 121.199 C4 C1 F7 119.027
C4 C5 H11 121.199 C5 C2 C6 121.947
C5 C2 F8 119.027 C5 C4 H10 121.199
C6 C2 F8 119.027 C6 C3 H9 121.199
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.324      
2 C 0.324      
3 C -0.251      
4 C -0.251      
5 C -0.251      
6 C -0.251      
7 F -0.229      
8 F -0.229      
9 H 0.204      
10 H 0.204      
11 H 0.204      
12 H 0.204      


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 -46.309 0.000 0.000
y 0.000 -36.986 0.000
z 0.000 0.000 -50.419
Traceless
 xyz
x -2.606 0.000 0.000
y 0.000 11.378 0.000
z 0.000 0.000 -8.772
Polar
3z2-r2-17.544
x2-y2-9.323
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.183 0.000 0.000
y 0.000 11.066 0.000
z 0.000 0.000 11.602


<r2> (average value of r2) Å2
<r2> 257.205
(<r2>)1/2 16.038