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Experimental data for SOCl2 (thionyl chloride)

22 02 02 11 45
Other names
Sulfinyl chloride; Sulfur chloride oxide; Sulfurous dichloride; Sulfurous oxychloride; Thionyl dichloride; Sulfinyl dichloride; Sulfur oxychloride;
INChI INChIKey SMILES IUPAC name
InChI=1S/Cl2OS/c1-4(2)3 FYSNRJHAOHDILO-UHFFFAOYSA-N O=S(Cl)Cl Sulfurous dichloride
State Conformation
1A' CS
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
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 A' 1251   Shim       SO stretch
2 A' 492   Shim       SCl2 s-stretch
3 A' 344   Shim       SCl2 wag
4 A' 194   Shim       SCl2 scissors
5 A" 455   Shim       SCl2 a-stretch
6 A" 284   Shim       SCl2 rock

vibrational zero-point energy: 1510.0 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for SOCl2 (thionyl chloride).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.16968 0.09415 0.06539 1994Mul/Ger:3473

Calculated rotational constants for SOCl2 (thionyl chloride).
Product of moments of inertia moments of inertia
4586140amu3Å6   2.0999804358594E-113gm3 cm6
Geometric Data
picture of thionyl chloride

Point Group Cs


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
rSO 1.443 0.006 1 2 1976Hellwege(II/7) ED, ra
rSCl 2.076 0.006 1 3 1976Hellwege(II/7)
aClSCl 96.1 0.7 3 1 4 1976Hellwege(II/7)
aOSCl 106.3 0.6 2 1 3 1976Hellwege(II/7)

Cartesians
Atom x (Å) y (Å) z (Å)
S1 0.0000 0.7520 0.0000
O2 1.4168 1.0255 0.0000
Cl3 -0.3334 -0.5952 1.5440
Cl4 -0.3334 -0.5952 -1.5440

Atom - Atom Distances bond lengths
Distances in Å
  S1 O2 Cl3 Cl4
S1   1.44302.07602.0760
O2 1.4430   2.84142.8414
Cl3 2.07602.8414   3.0880
Cl4 2.07602.84143.0880  

Calculated geometries for SOCl2 (thionyl chloride).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
O2 S1 Cl3 106.300 O2 S1 Cl4 106.300
Cl3 S1 Cl4 96.100

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
O=S 1
S-Cl 2

Connectivity
Atom 1 Atom 2
S1 O2
S1 Cl3
S1 Cl4
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A'

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
    11.070   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 1A' Cs True       1.450 NSRDS-NBS10 DT Cs 2 3
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 SOCl2 (thionyl chloride).
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 1A' Cs True       Cs 2 3

Calculated electric quadrupole moments for SOCl2 (thionyl chloride).

References
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squib reference DOI
1976Hellwege(II/7) Hellwege, KH and AM Hellwege (ed.). Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 7: Structure Data of Free Polyatomic Molecules. Springer-Verlag. Berlin. 1976.  
1994Mul/Ger:3473 HSP Muller, MCL Gerry "MICROWAVE SPECTROSCOPIC INVESTIGATION OF THIONYL CHLORIDE, SOCL2 - HYPERFINE CONSTANTS AND HARMONIC FORCE-FIELD" J. Chem. Soc. Farady trans. 90(23) 3473-3481, 1994 10.1039/ft9949003473
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
Shim Shimanouchi, T. , Tables of Molecular Vibrational Frequencies, Consolidated Volu 10.6028/NBS.NSRDS.39
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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