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

using model chemistry: wB97X-D/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 wB97X-D/6-311+G(3df,2p)
 hartrees
Energy at 0K-430.731560
Energy at 298.15K 
HF Energy-430.731560
Nuclear repulsion energy343.157476
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 wB97X-D/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 3228 3228 0.00 282.05 0.13 0.23
2 Ag 1683 1683 0.00 5.19 0.75 0.85
3 Ag 1298 1298 0.00 31.83 0.06 0.11
4 Ag 1171 1171 0.00 7.67 0.59 0.74
5 Ag 879 879 0.00 39.78 0.05 0.09
6 Ag 460 460 0.00 5.40 0.32 0.48
7 Au 990 990 0.00 0.00 0.00 0.00
8 Au 437 437 0.00 0.00 0.00 0.00
9 B1g 833 833 0.00 0.51 0.75 0.86
10 B1u 3210 3210 4.60 0.00 0.00 0.00
11 B1u 1559 1559 262.49 0.00 0.00 0.00
12 B1u 1225 1225 206.25 0.00 0.00 0.00
13 B1u 1001 1001 18.26 0.00 0.00 0.00
14 B1u 738 738 49.36 0.00 0.00 0.00
15 B2g 967 967 0.00 0.00 0.75 0.86
16 B2g 698 698 0.00 1.15 0.75 0.86
17 B2g 384 384 0.00 2.84 0.75 0.86
18 B2u 3227 3227 0.19 0.00 0.13 0.00
19 B2u 1465 1465 0.78 0.00 0.00 0.00
20 B2u 1321 1321 0.03 0.00 0.00 0.00
21 B2u 1116 1116 11.39 0.00 0.00 0.00
22 B2u 357 357 4.39 0.00 0.00 0.00
23 B3g 3215 3215 0.00 111.06 0.75 0.86
24 B3g 1680 1680 0.00 8.81 0.75 0.86
25 B3g 1312 1312 0.00 1.27 0.75 0.86
26 B3g 650 650 0.00 5.29 0.75 0.86
27 B3g 457 457 0.00 0.02 0.75 0.86
28 B3u 874 874 77.09 0.00 0.00 0.00
29 B3u 525 525 19.68 0.00 0.00 0.00
30 B3u 162 162 1.64 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18560.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18560.2 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 wB97X-D/6-311+G(3df,2p)
ABC
0.19064 0.04802 0.03836

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311+G(3df,2p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.361
C2 0.000 0.000 -1.361
C3 0.000 1.208 0.693
C4 0.000 -1.208 0.693
C5 0.000 -1.208 -0.693
C6 0.000 1.208 -0.693
F7 0.000 0.000 2.701
F8 0.000 0.000 -2.701
H9 0.000 2.133 1.253
H10 0.000 -2.133 1.253
H11 0.000 -2.133 -1.253
H12 0.000 2.133 -1.253

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.72221.38071.38072.38342.38341.33974.06202.13532.13533.37403.3740
C22.72222.38342.38341.38071.38074.06201.33973.37403.37402.13532.1353
C31.38072.38342.41682.78621.38642.34333.60281.08073.38763.86672.1549
C41.38072.38342.41681.38642.78622.34333.60283.38761.08072.15493.8667
C52.38341.38072.78621.38642.41683.60282.34333.86672.15491.08073.3876
C62.38341.38071.38642.78622.41683.60282.34332.15493.86673.38761.0807
F71.33974.06202.34332.34333.60283.60285.40172.57742.57744.49274.4927
F84.06201.33973.60283.60282.34332.34335.40174.49274.49272.57742.5774
H92.13533.37401.08073.38763.86672.15492.57744.49274.26524.94732.5068
H102.13533.37403.38761.08072.15493.86672.57744.49274.26522.50684.9473
H113.37402.13533.86672.15491.08073.38764.49272.57744.94732.50684.2652
H123.37402.13532.15493.86673.38761.08074.49272.57742.50684.94734.2652

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 118.931 C1 C3 H9 119.846
C1 C4 C5 118.931 C1 C4 H10 119.846
C2 C5 C4 118.931 C2 C5 H11 119.846
C2 C6 C3 118.931 C2 C6 H12 119.846
C3 C1 C4 122.139 C3 C1 F7 118.931
C3 C6 H12 121.223 C4 C1 F7 118.931
C4 C5 H11 121.223 C5 C2 C6 122.139
C5 C2 F8 118.931 C5 C4 H10 121.223
C6 C2 F8 118.931 C6 C3 H9 121.223
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.122      
2 C 0.122      
3 C 0.058      
4 C 0.058      
5 C 0.058      
6 C 0.058      
7 F -0.515      
8 F -0.515      
9 H 0.139      
10 H 0.139      
11 H 0.139      
12 H 0.139      


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 -46.504 0.000 0.000
y 0.000 -36.724 0.000
z 0.000 0.000 -51.618
Traceless
 xyz
x -2.333 0.000 0.000
y 0.000 12.337 0.000
z 0.000 0.000 -10.004
Polar
3z2-r2-20.008
x2-y2-9.780
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.309 0.000 0.000
y 0.000 11.670 0.000
z 0.000 0.000 12.208


<r2> (average value of r2) Å2
<r2> 252.663
(<r2>)1/2 15.895