return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Experimental > One molecule all properties

Experimental data for HS+ (sulfur monohydride cation)

22 02 02 11 45
Other names
Mercapto; Mercapto radical; Sulfanyl; λ1-Sulfane;
INChI INChIKey SMILES IUPAC name
InChI=1S/HS/h1H PXQLVRUNWNTZOS-UHFFFAOYSA-N [SH] Sulfanyl
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 140.42 3.50 kJ mol-1 Gurvich
Hfg(0K) enthalpy of formation 139.97 3.50 kJ mol-1 Gurvich
Entropy (298.15K) entropy 195.55   J K-1 mol-1 Gurvich
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 9.10   kJ mol-1 Gurvich
Heat Capacity (298.15K) heat capacity 32.48   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 2599 2696 1995Ram/Ber:34      

Detailed diatomic data
ωe ωexe ωeye Be αe ZPE reference
2696.248 48.742 0.1124 9.600247 0.2799 1337.188 2007Iri:389

vibrational zero-point energy: 1299.6 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for HS+ (sulfur monohydride cation).
More spectroscopic constants are available at the NIST Physics Laboratory website:
http://physics.nist.gov/PhysRefData/MolSpec/Diatomic/Html/Tables/SH.html
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
  9.60025   1995Ram/Ber:34 Be

Calculated rotational constants for HS+ (sulfur monohydride cation).
Product of moments of inertia moments of inertia
1.755958amu Å2   2.915878E-40gm cm2
Geometric Data
picture of sulfur monohydride cation

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
rSH 1.341   1 2 1979HUB/HER re
An error occurred on the server when processing the URL. Please contact the system administrator.

If you are the system administrator please click here to find out more about this error.