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Experimental data for C6H5F (Fluorobenzene)

22 02 02 11 45
Other names
Phenyl fluoride; Benzene, fluoro-; Monofluorobenzene; fluorobenzene;
INChI INChIKey SMILES IUPAC name
InChI=1S/C6H5F/c7-6-4-2-1-3-5-6/h1-5H PYLWMHQQBFSUBP-UHFFFAOYSA-N FC1=CC=CC=C1 fluorobenzene
State Conformation
1A1 C2V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation -110.80 0.10 kJ mol-1 1956Sco/McC:5457
Hfg(0K) enthalpy of formation   0.10 kJ mol-1 1956Sco/McC:5457
Entropy (298.15K) entropy 302.63   J K-1 mol-1 1956Sco/McC:5457
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 16.18   kJ mol-1 1956Sco/McC:5457
Heat Capacity (298.15K) heat capacity 94.43   J K-1 mol-1 1956Sco/McC:5457
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 A1 3101   1956Sco/McC:5457      
2 A1 3067          
3 A1 3044          
4 A1 1596          
5 A1 1499          
6 A1 1220          
7 A1 1157          
8 A1 1022          
9 A1 1008          
10 A1 808          
11 A1 519          
12 A2 970          
13 A2 826          
14 A2 405          
15 B1 997          
16 B1 894          
17 B1 754          
18 B1 685          
19 B1 500          
20 B1 242          
21 B2 3091          
22 B2 3058          
23 B2 1603          
24 B2 1460          
25 B2 1323          
26 B2 1236          
27 B2 1157          
28 B2 1066          
29 B2 614          
30 B2 405          

vibrational zero-point energy: 19663.5 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for C6H5F (Fluorobenzene).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.18892 0.08575 0.05897 1957Bak/Chr:134

Calculated rotational constants for C6H5F (Fluorobenzene).
Product of moments of inertia moments of inertia
5014817amu3Å6   2.2962706628124E-113gm3 cm6
Geometric Data
picture of Fluorobenzene

Point Group C2v


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rCC 1.383 0.005 2 3 1976Hellwege(II/7)
rCC 1.395 0.005 3 5 1976Hellwege(II/7)
rCC 1.397 0.005 5 7 1976Hellwege(II/7)
rCF 1.354 0.010 1 2 1976Hellwege(II/7)
rCH 1.081 0.005 3 8 1976Hellwege(II/7)
rCH 1.083 0.005 5 10 1976Hellwege(II/7)
rCH 1.080 0.005 7 12 1976Hellwege(II/7)
aCCC 123.4 0.5 3 2 4 1976Hellwege(II/7)
aCCC 117.9 0.5 2 3 5 1976Hellwege(II/7)
aCCC 120.5 0.5 3 5 7 1976Hellwege(II/7)
aCCC 119.8 0.5 5 7 6 1976Hellwege(II/7)
aHCC 120 0.5 2 3 8 1976Hellwege(II/7)
aHCC 119.9 0.5 7 5 10 1976Hellwege(II/7)

Cartesians
Atom x (Å) y (Å) z (Å)
F1 0.0000 0.0000 -2.2030
C2 0.0000 0.0000 -0.8490
C3 0.0000 -1.2170 -0.1930
C4 0.0000 1.2170 -0.1930
C5 0.0000 -1.2080 1.2020
C6 0.0000 1.2080 1.2020
C7 0.0000 0.0000 1.9030
H8 0.0000 -2.1370 -0.7610
H9 0.0000 2.1370 -0.7610
H10 0.0000 -2.1470 1.7430
H11 0.0000 2.1470 1.7430
H12 0.0000 0.0000 2.9830

Atom - Atom Distances bond lengths
Distances in Å
  F1 C2 C3 C4 C5 C6 C7 H8 H9 H10 H11 H12
F1   1.35402.34972.34973.61293.61294.10602.57802.57804.49234.49235.1860
C2 1.3540   1.38251.38252.38032.38032.75202.13882.13883.36573.36573.8320
C3 2.34971.3825   2.43401.39502.79762.42371.08123.40182.14783.88133.4012
C4 2.34971.38252.4340   2.79761.39502.42373.40181.08123.88132.14783.4012
C5 3.61292.38031.39502.7976   2.41601.39672.17173.87851.08373.39832.1520
C6 3.61292.38032.79761.39502.4160   1.39673.87852.17173.39831.08372.1520
C7 4.10602.75202.42372.42371.39671.3967   3.41523.41522.15302.15301.0800
H8 2.57802.13881.08123.40182.17173.87853.4152   4.27402.50404.96214.3110
H9 2.57802.13883.40181.08123.87852.17173.41524.2740   4.96212.50404.3110
H10 4.49233.36572.14783.88131.08373.39832.15302.50404.9621   4.29402.4794
H11 4.49233.36573.88132.14783.39831.08372.15304.96212.50404.2940   2.4794
H12 5.18603.83203.40123.40122.15202.15201.08004.31104.31102.47942.4794  

Calculated geometries for C6H5F (Fluorobenzene).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
F1 C2 C3 118.326 F1 C2 C4 118.326
C2 C3 C5 117.956 C2 C3 H8 119.983
C2 C4 C6 117.956 C2 C4 H9 119.983
C3 C2 C4 123.348 C3 C5 C7 120.496
C3 C5 H10 119.579 C4 C6 C7 120.496
C4 C6 H11 119.579 C5 C3 H8 122.060
C5 C7 C6 119.747 C5 C7 H12 120.127
C6 C4 H9 122.060 C6 C7 H12 120.127
C7 C5 H10 119.925 C7 C6 H11 119.925

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
C-F 1
H-C 5
C:C 6

Connectivity
Atom 1 Atom 2
F1 C2
C2 C3
C2 C4
C3 C5
C3 H8
C4 C6
C4 H9
C5 C7
C5 H10
C6 C7
C6 H11
C7 H12
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
9.200   9.220   webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A1 C2v True     1.600 1.600 1984Gra/Gub   C2v 1 2
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for C6H5F (Fluorobenzene).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A1 C2v True -5.820 7.340 -1.520 1984Gra/Gub +_0.62, +-0.48, +-0.36 C2v 1 2

Calculated electric quadrupole moments for C6H5F (Fluorobenzene).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
10.200   1984Gra/Gub

Calculated electric dipole polarizability for C6H5F (Fluorobenzene).

References
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squib reference DOI
1956Sco/McC:5457 DW Scott, JP McCullough, WD Good, JF Messerly, RE Pennington, TC Kincheloe, IA Hossenlopp, DR Douslin, G Waddington "Fluorobenzene: Thermodynamic Properties in the SOlid, Liquid and Vapor States; A revised vibrational Assignment" J. Amer. Chem. Soc. 78(21), 5457, 1956 10.1021/ja01602a001
1957Bak/Chr:134 B Bak, D Christensen, L Hansen-Nygarrd, E Tannenbaum "Microwave Determination of the Structure of Fluorobenzene" J. Chem. Phys. 26(1), 134, 1957 10.1063/1.1743237
1976Hellwege(II/7) Hellwege, KH and AM Hellwege (ed.). Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 7: Structure Data of Free Polyatomic Molecules. Springer-Verlag. Berlin. 1976.  
1984Gra/Gub CG Gray, KE Gubbins "Theory of molecular fluids. Volume 1:Fundamentals" Clarendon Press, Oxford 1984  
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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