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Experimental data for FCN (Cyanogen fluoride)

22 02 02 11 45
INChI INChIKey SMILES IUPAC name
InChI=1S/CFN/c2-1-3 CPPKAGUPTKIMNP-UHFFFAOYSA-N FC#N
State Conformation
1Σ C*V
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 34.33 20.00 kJ mol-1 Gurvich
Hfg(0K) enthalpy of formation 34.00 20.00 kJ mol-1 Gurvich
Entropy (298.15K) entropy 224.60   J K-1 mol-1 Gurvich
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 10.13   kJ mol-1 Gurvich
Heat Capacity (298.15K) heat capacity 41.76   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 Σ 2317   Gurvich       CN stretch
2 Σ 1060   Gurvich       CF str
3 Π 451   Gurvich       FCN bend

vibrational zero-point energy: 2139.7 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for FCN (Cyanogen fluoride).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
  0.35205 0.35205 Gurvich

Calculated rotational constants for FCN (Cyanogen fluoride).
Product of moments of inertia moments of inertia
47.88419amu Å2   7.951482E-39gm cm2
Geometric Data
picture of Cyanogen fluoride

Point Group C∞v


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 1.262   1 2 Gurvich
rCN 1.159   1 3 Gurvich

Cartesians
Atom x (Å) y (Å) z (Å)
C1 0.0000 0.0000 0.0000
F2 0.0000 0.0000 -1.2620
N3 0.0000 0.0000 1.1590

Atom - Atom Distances bond lengths
Distances in Å
  C1 F2 N3
C1   1.26201.1590
F2 1.2620   2.4210
N3 1.15902.4210  

Calculated geometries for FCN (Cyanogen fluoride).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle
F2 C1 N3 180.000

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
C#N 1

Connectivity
Atom 1 Atom 2
C1 F2
C1 N3
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1Σ

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
13.340 0.020     webbook

Electron Affinity (eV)
Electron Affinity unc. reference
3.673   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 1Σ C∞v True       2.170 NSRDS-NBS10 MW μ0 C∞v 1 1
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 FCN (Cyanogen fluoride).
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 1Σ C∞v True       C∞v 1 1

Calculated electric quadrupole moments for FCN (Cyanogen fluoride).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
2.550   1998Gus/Rui:163

Calculated electric dipole polarizability for FCN (Cyanogen fluoride).

References
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squib reference DOI
1998Gus/Rui:163 M Gussoni, R Rui, G Zerbi "Electronic and relaxation contribution to linear molecular polarizability. An analysis of the experimental values" J. Mol. Struct. 447 (1998) 163-215 10.1016/S0022-2860(97)00292-5
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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