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Experimental data for CF4 (Carbon tetrafluoride)

22 02 02 11 45
Other names
Arcton 0; Carbon fluoride; Carbon fluoride (CF4); Carbon tetrafluoride; F 14; FC 14; Freon 14; Halocarbon 14; Halon 14; Methane, tetrafluoro-; Perfluoromethane; R 14; Refrigerant 14; Tetrafluoromethane;
INChI INChIKey SMILES IUPAC name
InChI=1S/CF4/c2-1(3,4)5 TXEYQDLBPFQVAA-UHFFFAOYSA-N FC(F)(F)F Perfluoromethane
State Conformation
1A1 TD
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 -933.20 0.75 kJ mol-1 Gurvich
Hfg(0K) enthalpy of formation -927.23 0.75 kJ mol-1 Gurvich
Entropy (298.15K) entropy 261.45   J K-1 mol-1 Gurvich
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 12.73   kJ mol-1 Gurvich
Heat Capacity (298.15K) heat capacity 61.05   J K-1 mol-1 Gurvich
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 909   1978Jon/Ken:833       sym stretch
2 E 435   1978Jon/Ken:833       deg. deform
3 T2 1283   1978Jon/Ken:833 1080.0 177.0 1977New/Lev:3282 deg. stretch
4 T2 631   1978Jon/Ken:833 11.7 2.2 1977New/Lev:3282 deg. deform

vibrational zero-point energy: 3769.8 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for CF4 (Carbon tetrafluoride).
Gas-phase IR spectra can be found in the NIST Chemistry Webbook here.
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.19242 0.19242 0.19242 1998Kuc from re

Calculated rotational constants for CF4 (Carbon tetrafluoride).
Product of moments of inertia moments of inertia
672417.4amu3Å6   3.07898061862425E-114gm3 cm6
Geometric Data
picture of Carbon tetrafluoride

Point Group Td


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
rCF 1.315 0.002 1 2 1998Kuc
aFCF 109.4712 2 1 3 symmetry

Cartesians
Atom x (Å) y (Å) z (Å)
C1 0.0000 0.0000 0.0000
F2 0.7593 0.7593 0.7593
F3 -0.7593 -0.7593 0.7593
F4 -0.7593 0.7593 -0.7593
F5 0.7593 -0.7593 -0.7593

Atom - Atom Distances bond lengths
Distances in Å
  C1 F2 F3 F4 F5
C1   1.31511.31511.31511.3151
F2 1.3151   2.14752.14752.1475
F3 1.31512.1475   2.14752.1475
F4 1.31512.14752.1475   2.1475
F5 1.31512.14752.14752.1475  

Calculated geometries for CF4 (Carbon tetrafluoride).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
F2 C1 F3 109.471 F2 C1 F4 109.471
F2 C1 F5 109.471 F3 C1 F4 109.471
F3 C1 F5 109.471 F4 C1 F5 109.471

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
C-F 4

Connectivity
Atom 1 Atom 2
C1 F2
C1 F3
C1 F4
C1 F5
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 Comment
14.700       webbook upper limit for IE 16.2
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 Td True       0.000 NSRDS-NBS10   Td 0 0
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 CF4 (Carbon tetrafluoride).
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 Td True       Td 0 0

Calculated electric quadrupole moments for CF4 (Carbon tetrafluoride).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
2.824   1997Oln/Can:59

Calculated electric dipole polarizability for CF4 (Carbon tetrafluoride).

References
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squib reference DOI
1978Jon/Ken:833 LH Jones, C Kennedy, S Ekberg "Potential Constants of CF4" J. Chem. Phys. 69(2) 833, 1978 10.1063/1.436598
1997Oln/Can:59 TN Olney, NM Cann, G Cooper, CE Brion, Absolute scale determination for photoabsorption spectra and the calculation of molecular properties using dipole sum-rules, Chem. Phys. 223 (1997) 59-98 10.1016/S0301-0104(97)00145-6
1998Kuc K Kuchitsu(ed) "Structure of Free Polyatomic Molecules - Basic Data" Springer, Berlin, 1998 10.1007/978-3-642-45748-7 
Gurvich Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989  
NSRDS-NBS10 R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 10.6028/NBS.NSRDS.10
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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