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Experimental data for BeS+ (Beryllium monosulfide cation)

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Other names
Beryllium sulfide; Beryllium sulfide (BeS);
INChI INChIKey SMILES IUPAC name
InChI=1S/Be.S FQDSYGKTHDFFCM-UHFFFAOYSA-N [Be]=S Beryllium sulfide
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 264.00 63.00 kJ mol-1 JANAF
Hfg(0K) enthalpy of formation 261.00 63.00 kJ mol-1 JANAF
Entropy (298.15K) entropy 210.29 0.42 J K-1 mol-1 JANAF
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 8.78   kJ mol-1 JANAF
Heat Capacity (298.15K) heat capacity 30.79   J K-1 mol-1 webbook
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 986 998 Gurvich      

Detailed diatomic data
ωe ωexe ωeye Be αe ZPE reference
997.94 6.137 0.79059 0.00664 497.4147 2007Iri:389

vibrational zero-point energy: 492.8 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for BeS+ (Beryllium monosulfide cation).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
  0.79059   1979HUB/HER

Calculated rotational constants for BeS+ (Beryllium monosulfide cation).
Product of moments of inertia moments of inertia
21.32285amu Å2   3.540797E-39gm cm2
Geometric Data
picture of Beryllium monosulfide 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
rBeS 1.742   1 2 1979HUB/HER re

Cartesians
Atom x (Å) y (Å) z (Å)
Be1 0.0000 0.0000 0.0000
S2 0.0000 0.0000 1.7415

Atom - Atom Distances bond lengths
Distances in Å
  Be1 S2
Be1   1.7415
S2 1.7415  

Calculated geometries for BeS+ (Beryllium monosulfide cation).

Bond descriptions


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

Connectivity
Atom 1 Atom 2
Be1 S2
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1 1979HUB/HER 1Σ
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           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 BeS+ (Beryllium monosulfide cation).
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 BeS+ (Beryllium monosulfide cation).

References
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squib reference DOI
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  
JANAF Chase, M.W., Jr.; Davies, C.A.; Downey, J.R., Jr.; Frurip, D.J.; McDonald, R.A.; Syverud, A.N., JANAF Thermochemical Tables (Third Edition), J. Phys. Chem. Ref. Data,Suppl. 1, 1985, 14, 1.  
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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