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

using model chemistry: B97D3/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-430.633054
Energy at 298.15K 
HF Energy-430.633054
Nuclear repulsion energy340.345308
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/aug-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 3114 0.00 318.06 0.13 0.23
2 Ag 1602 1577 0.00 5.68 0.75 0.86
3 Ag 1231 1212 0.00 31.93 0.06 0.12
4 Ag 1139 1121 0.00 8.71 0.53 0.69
5 Ag 846 834 0.00 41.25 0.05 0.09
6 Ag 448 441 0.00 6.16 0.28 0.44
7 Au 931 916 0.00 0.00 0.00 0.00
8 Au 425 419 0.00 0.00 0.00 0.00
9 B1g 784 772 0.00 0.39 0.75 0.86
10 B1u 3148 3100 7.83 0.00 0.00 0.00
11 B1u 1499 1476 228.00 0.00 0.00 0.00
12 B1u 1188 1170 220.26 0.00 0.00 0.00
13 B1u 1008 992 1.03 0.00 0.00 0.00
14 B1u 730 719 71.87 0.00 0.00 0.00
15 B2g 918 904 0.00 0.00 0.75 0.86
16 B2g 692 681 0.00 1.03 0.75 0.86
17 B2g 363 358 0.00 3.14 0.75 0.86
18 B2u 3162 3113 2.45 0.00 0.00 0.00
19 B2u 1411 1390 0.71 0.00 0.00 0.00
20 B2u 1333 1313 0.08 0.00 0.00 0.00
21 B2u 1087 1071 10.75 0.00 0.00 0.00
22 B2u 342 337 3.73 0.00 0.00 0.00
23 B3g 3150 3102 0.00 127.38 0.75 0.86
24 B3g 1608 1584 0.00 7.73 0.75 0.86
25 B3g 1276 1257 0.00 1.48 0.75 0.86
26 B3g 634 624 0.00 5.17 0.75 0.86
27 B3g 441 435 0.00 0.06 0.75 0.86
28 B3u 827 814 69.84 0.00 0.00 0.00
29 B3u 502 495 19.32 0.00 0.00 0.00
30 B3u 153 151 1.44 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18021.4 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 17745.7 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/aug-cc-pVTZ
ABC
0.18807 0.04716 0.03771

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.369
C2 0.000 0.000 -1.369
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 2.728
F8 0.000 0.000 -2.728
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
C12.73851.39001.39002.39872.39871.35844.09692.14742.14743.39243.3924
C22.73852.39872.39871.39001.39004.09691.35843.39243.39242.14742.1474
C31.39002.39872.43402.80571.39552.36683.63521.08433.40823.88982.1657
C41.39002.39872.43401.39552.80572.36683.63523.40821.08432.16573.8898
C52.39871.39002.80571.39552.43403.63522.36683.88982.16571.08433.4082
C62.39871.39001.39552.80572.43403.63522.36682.16573.88983.40821.0843
F71.35844.09692.36682.36683.63523.63525.45532.59922.59924.52714.5271
F84.09691.35843.63523.63522.36682.36685.45534.52714.52712.59922.5992
H92.14743.39241.08433.40823.88982.16572.59924.52714.28934.97392.5184
H102.14743.39243.40821.08432.16573.88982.59924.52714.28932.51844.9739
H113.39242.14743.88982.16571.08433.40824.52712.59924.97392.51844.2893
H123.39242.14742.16573.88983.40821.08434.52712.59922.51844.97394.2893

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 118.888 C1 C3 H9 119.927
C1 C4 C5 118.888 C1 C4 H10 119.927
C2 C5 C4 118.888 C2 C5 H11 119.927
C2 C6 C3 118.888 C2 C6 H12 119.927
C3 C1 C4 122.223 C3 C1 F7 118.888
C3 C6 H12 121.184 C4 C1 F7 118.888
C4 C5 H11 121.184 C5 C2 C6 122.223
C5 C2 F8 118.888 C5 C4 H10 121.184
C6 C2 F8 118.888 C6 C3 H9 121.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.671      
2 C 0.671      
3 C -0.460      
4 C -0.460      
5 C -0.460      
6 C -0.460      
7 F -0.473      
8 F -0.473      
9 H 0.362      
10 H 0.362      
11 H 0.362      
12 H 0.362      


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 -46.349 0.000 0.000
y 0.000 -37.393 0.000
z 0.000 0.000 -51.780
Traceless
 xyz
x -1.762 0.000 0.000
y 0.000 11.671 0.000
z 0.000 0.000 -9.909
Polar
3z2-r2-19.817
x2-y2-8.956
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.510 0.000 0.000
y 0.000 12.252 0.000
z 0.000 0.000 12.992


<r2> (average value of r2) Å2
<r2> 256.605
(<r2>)1/2 16.019