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Experimental data for SF (Monosulfur monofluoride)

22 02 02 11 45
Other names
Sulfur fluoride;
INChI INChIKey SMILES IUPAC name
InChI=1S/FS/c1-2 YNAAFGQNGMFIHH-UHFFFAOYSA-N [S]F
State Conformation
2Π 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 15.45 6.00 kJ mol-1 Gurvich
Hfg(0K) enthalpy of formation 14.80 6.00 kJ mol-1 Gurvich
Entropy (298.15K) entropy 225.28 0.80 J K-1 mol-1 Gurvich
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 9.47   kJ mol-1 Gurvich
Heat Capacity (298.15K) heat capacity 35.18   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 829 838 2007Iri:389      

Detailed diatomic data
ωe ωexe ωeye Be αe ZPE reference
837.6418 4.46953 0.555173 0.004459 417.8517 2007Iri:389

vibrational zero-point energy: 414.4 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for SF (Monosulfur monofluoride).
More spectroscopic constants are available at the NIST Physics Laboratory website:
http://physics.nist.gov/PhysRefData/MolSpec/Diatomic/Html/Tables/SF.html
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
  0.55217   1979HUB/HER

Calculated rotational constants for SF (Monosulfur monofluoride).
Product of moments of inertia moments of inertia
30.52956amu Å2   5.069632E-39gm cm2
Geometric Data
picture of Monosulfur monofluoride

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
rSF 1.599   1 2 NISTdiatomic r0

Cartesians
Atom x (Å) y (Å) z (Å)
S1 0.0000 0.0000 0.0000
F2 0.0000 0.0000 1.6006

Atom - Atom Distances bond lengths
Distances in Å
  S1 F2
S1   1.6006
F2 1.6006  

Calculated geometries for SF (Monosulfur monofluoride).

Bond descriptions


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

Connectivity
Atom 1 Atom 2
S1 F2
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 2 1979HUB/HER 2Π
401 2 1979HUB/HER

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
10.100 0.200     webbook

Electron Affinity (eV)
Electron Affinity unc. reference
2.285 0.006 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 2Π C∞v True       0.794 1973Ama/Hir:417 ± 0.012 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 SF (Monosulfur monofluoride).
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 2Π C∞v True       C∞v 1 1

Calculated electric quadrupole moments for SF (Monosulfur monofluoride).

References
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squib reference DOI
1973Ama/Hir:417 T Amano, E Hirota "Microwave Spectrum of the SF Radical" J. Mol. Spec. 45, 417-419 (1973) 10.1016/0022-2852(73)90212-9
1979HUB/HER Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules, Van Nostrand Reinhold Co., 1979 10.1007/978-1-4757-0961-2
2007Iri:389 KK Irikura "Experimental Vibrational Zero-Point Energies: Diatomic Molecules" J. Phys. Chem. Ref. Data 36(2), 389, 2007 10.1063/1.2436891
Gurvich Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989  
NISTdiatomic NIST Diatomic Spectral Database (www.physics.nist.gov/PhysRefData/MolSpec/Diatomic/index.html) 10.18434/T4T59X
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

Got a better number? Please email us at cccbdb@nist.gov


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