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

using model chemistry: M06-2X/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at M06-2X/6-31+G**
 hartrees
Energy at 0K-430.573805
Energy at 298.15K 
HF Energy-430.573805
Nuclear repulsion energy341.585614
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 M06-2X/6-31+G**
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 3257 3101 0.00 308.81 0.15 0.26
2 Ag 1700 1619 0.00 4.65 0.74 0.85
3 Ag 1321 1258 0.00 30.17 0.06 0.11
4 Ag 1158 1102 0.00 8.82 0.62 0.77
5 Ag 885 843 0.00 38.61 0.05 0.10
6 Ag 456 434 0.00 5.22 0.41 0.58
7 Au 978 931 0.00 0.00 0.00 0.00
8 Au 434 414 0.00 0.00 0.00 0.00
9 B1g 828 788 0.00 0.00 0.75 0.86
10 B1u 3244 3089 2.67 0.00 0.00 0.00
11 B1u 1571 1496 293.04 0.00 0.00 0.00
12 B1u 1254 1194 171.95 0.00 0.00 0.00
13 B1u 1031 982 4.55 0.00 0.00 0.00
14 B1u 755 719 58.74 0.00 0.00 0.00
15 B2g 953 908 0.00 0.12 0.75 0.86
16 B2g 702 668 0.00 0.89 0.75 0.86
17 B2g 381 363 0.00 3.44 0.75 0.86
18 B2u 3256 3101 0.12 0.00 0.15 0.26
19 B2u 1466 1396 0.68 0.00 0.00 0.00
20 B2u 1336 1272 0.25 0.00 0.00 0.00
21 B2u 1104 1051 11.61 0.00 0.00 0.00
22 B2u 350 333 5.50 0.00 0.00 0.00
23 B3g 3246 3091 0.00 129.23 0.75 0.86
24 B3g 1698 1617 0.00 9.92 0.75 0.86
25 B3g 1297 1235 0.00 1.32 0.75 0.86
26 B3g 646 615 0.00 7.15 0.75 0.86
27 B3g 446 425 0.00 0.04 0.75 0.86
28 B3u 863 822 91.81 0.00 0.00 0.00
29 B3u 519 494 18.67 0.00 0.00 0.00
30 B3u 161 153 1.89 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18647.4 cm-1
Scaled (by 0.9522) Zero Point Vibrational Energy (zpe) 17756.0 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 M06-2X/6-31+G**
ABC
0.18846 0.04766 0.03804

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31+G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.363
C2 0.000 0.000 -1.363
C3 0.000 1.216 0.697
C4 0.000 -1.216 0.697
C5 0.000 -1.216 -0.697
C6 0.000 1.216 -0.697
F7 0.000 0.000 2.712
F8 0.000 0.000 -2.712
H9 0.000 2.139 1.265
H10 0.000 -2.139 1.265
H11 0.000 -2.139 -1.265
H12 0.000 2.139 -1.265

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.72631.38681.38682.39212.39211.34844.07472.14172.14173.38863.3886
C22.72632.39212.39211.38681.38684.07471.34843.38863.38862.14172.1417
C31.38682.39212.43242.80321.39332.35353.61871.08393.40343.88682.1677
C41.38682.39212.43241.39332.80322.35353.61873.40341.08392.16773.8868
C52.39211.38682.80321.39332.43243.61872.35353.88682.16771.08393.4034
C62.39211.38681.39332.80322.43243.61872.35352.16773.88683.40341.0839
F71.34844.07472.35352.35353.61873.61875.42302.58282.58284.51524.5152
F84.07471.34843.61873.61872.35352.35355.42304.51524.51522.58282.5828
H92.14173.38861.08393.40343.88682.16772.58284.51524.27894.97052.5292
H102.14173.38863.40341.08392.16773.88682.58284.51524.27892.52924.9705
H113.38862.14173.88682.16771.08393.40344.51522.58284.97052.52924.2789
H123.38862.14172.16773.88683.40341.08394.51522.58282.52924.97054.2789

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 118.723 C1 C3 H9 119.680
C1 C4 C5 118.723 C1 C4 H10 119.680
C2 C5 C4 118.723 C2 C5 H11 119.680
C2 C6 C3 118.723 C2 C6 H12 119.680
C3 C1 C4 122.555 C3 C1 F7 118.723
C3 C6 H12 121.598 C4 C1 F7 118.723
C4 C5 H11 121.598 C5 C2 C6 122.555
C5 C2 F8 118.723 C5 C4 H10 121.598
C6 C2 F8 118.723 C6 C3 H9 121.598
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.068      
2 C -0.068      
3 C 0.019      
4 C 0.019      
5 C 0.019      
6 C 0.019      
7 F -0.332      
8 F -0.332      
9 H 0.182      
10 H 0.182      
11 H 0.182      
12 H 0.182      


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 -47.026 0.000 0.000
y 0.000 -36.784 0.000
z 0.000 0.000 -52.769
Traceless
 xyz
x -2.250 0.000 0.000
y 0.000 13.114 0.000
z 0.000 0.000 -10.864
Polar
3z2-r2-21.729
x2-y2-10.243
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.632 0.000 0.000
y 0.000 11.329 0.000
z 0.000 0.000 11.698


<r2> (average value of r2) Å2
<r2> 254.930
(<r2>)1/2 15.967