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

using model chemistry: B97D3/TZVP

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/TZVP
 hartrees
Energy at 0K-430.627095
Energy at 298.15K 
HF Energy-430.627095
Nuclear repulsion energy340.052599
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/TZVP
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 3120 0.00 309.88 0.15 0.26
2 Ag 1605 1582 0.00 6.50 0.71 0.83
3 Ag 1233 1215 0.00 24.11 0.07 0.12
4 Ag 1145 1129 0.00 7.71 0.54 0.70
5 Ag 847 835 0.00 36.74 0.07 0.12
6 Ag 450 443 0.00 6.05 0.41 0.59
7 Au 886 873 0.00 0.00 0.00 0.00
8 Au 410 404 0.00 0.00 0.00 0.00
9 B1g 769 758 0.00 0.12 0.75 0.86
10 B1u 3152 3106 6.88 0.00 0.00 0.00
11 B1u 1502 1480 230.97 0.00 0.00 0.00
12 B1u 1191 1174 213.15 0.00 0.00 0.00
13 B1u 1009 994 1.51 0.00 0.00 0.00
14 B1u 730 719 71.38 0.00 0.00 0.00
15 B2g 839 827 0.00 0.32 0.75 0.86
16 B2g 551 543 0.00 2.01 0.75 0.86
17 B2g 334 329 0.00 1.88 0.75 0.86
18 B2u 3165 3119 1.96 0.00 0.00 0.00
19 B2u 1414 1394 1.01 0.00 0.00 0.00
20 B2u 1332 1313 0.02 0.00 0.00 0.00
21 B2u 1094 1078 12.65 0.00 0.00 0.00
22 B2u 344 339 4.18 0.00 0.00 0.00
23 B3g 3154 3108 0.00 127.15 0.75 0.86
24 B3g 1607 1584 0.00 8.06 0.75 0.86
25 B3g 1282 1263 0.00 1.49 0.75 0.86
26 B3g 637 628 0.00 7.82 0.75 0.86
27 B3g 445 439 0.00 0.13 0.75 0.86
28 B3u 804 792 76.09 0.00 0.00 0.00
29 B3u 495 487 17.15 0.00 0.00 0.00
30 B3u 152 150 1.53 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 17869.9 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 17612.5 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/TZVP
ABC
0.18781 0.04707 0.03764

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.371
C2 0.000 0.000 -1.371
C3 0.000 1.218 0.698
C4 0.000 -1.218 0.698
C5 0.000 -1.218 -0.698
C6 0.000 1.218 -0.698
F7 0.000 0.000 2.730
F8 0.000 0.000 -2.730
H9 0.000 2.147 1.260
H10 0.000 -2.147 1.260
H11 0.000 -2.147 -1.260
H12 0.000 2.147 -1.260

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.74141.39121.39122.40072.40071.35964.10102.14952.14953.39543.3954
C22.74142.40072.40071.39121.39124.10101.35963.39543.39542.14952.1495
C31.39122.40072.43562.80741.39632.36913.63831.08563.41103.89282.1673
C41.39122.40072.43561.39632.80742.36913.63833.41101.08562.16733.8928
C52.40071.39122.80741.39632.43563.63832.36913.89282.16731.08563.4110
C62.40071.39121.39632.80742.43563.63832.36912.16733.89283.41101.0856
F71.35964.10102.36912.36913.63833.63835.46062.60192.60194.53114.5311
F84.10101.35963.63833.63832.36912.36915.46064.53114.53112.60192.6019
H92.14953.39541.08563.41103.89282.16732.60194.53114.29334.97822.5200
H102.14953.39543.41101.08562.16733.89282.60194.53114.29332.52004.9782
H113.39542.14953.89282.16731.08563.41104.53112.60194.97822.52004.2933
H123.39542.14952.16733.89283.41101.08564.53112.60192.52004.97824.2933

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 118.911 C1 C3 H9 119.921
C1 C4 C5 118.911 C1 C4 H10 119.921
C2 C5 C4 118.911 C2 C5 H11 119.921
C2 C6 C3 118.911 C2 C6 H12 119.921
C3 C1 C4 122.178 C3 C1 F7 118.911
C3 C6 H12 121.168 C4 C1 F7 118.911
C4 C5 H11 121.168 C5 C2 C6 122.178
C5 C2 F8 118.911 C5 C4 H10 121.168
C6 C2 F8 118.911 C6 C3 H9 121.168
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.236      
2 C 0.236      
3 C -0.148      
4 C -0.148      
5 C -0.148      
6 C -0.148      
7 F -0.174      
8 F -0.174      
9 H 0.117      
10 H 0.117      
11 H 0.117      
12 H 0.117      


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 -46.436 0.000 0.000
y 0.000 -37.116 0.000
z 0.000 0.000 -52.010
Traceless
 xyz
x -1.873 0.000 0.000
y 0.000 12.107 0.000
z 0.000 0.000 -10.234
Polar
3z2-r2-20.467
x2-y2-9.320
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.475 0.000 0.000
y 0.000 11.423 0.000
z 0.000 0.000 12.116


<r2> (average value of r2) Å2
<r2> 257.022
(<r2>)1/2 16.032