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 C4H8OS (s-Ethyl thioacetate)

22 02 02 11 45
Other names
Acetic acid, thio-, S-ethyl ester; Ethanethioic acid S-ethyl ester; Ethyl thioacetate; Ethyl thiolacetate; S-Ethyl ethanethioate; S-Ethyl thioacetate; S-Ethyl thiolacetate; Thioacetic acid, ethyl ester;
INChI INChIKey SMILES IUPAC name
InChI=1S/C4H8OS/c1-3-6-4(2)5/h3H2,1-2H3 APTGPWJUOYMUCE-UHFFFAOYSA-N CC(SCC)=O S-Ethyl ethanethioate
State Conformation
1A C1
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 -227.82 0.92 kJ mol-1 webbook
Hfg(0K) enthalpy of formation   0.92 kJ mol-1 webbook
Entropy (298.15K) entropy     J K-1 mol-1  
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity     kJ mol-1  
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

Calculated vibrational frequencies for C4H8OS (s-Ethyl thioacetate).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
       

Calculated rotational constants for C4H8OS (s-Ethyl thioacetate).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of s-Ethyl thioacetate

Point Group C1


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

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for C4H8OS (s-Ethyl thioacetate).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 8
C-C 2
C=O 1
C-S 2

Connectivity
Atom 1 Atom 2
O1 C2
C2 S3
C2 C7
S3 C10
H4 C7
H5 C7
H6 C7
H8 C10
H9 C10
C10 C14
H11 C14
H12 C14
H13 C14
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
9.200   9.400   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 C1 True           C1 3 5
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 C4H8OS (s-Ethyl thioacetate).
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 C1 True       C1 3 5

Calculated electric quadrupole moments for C4H8OS (s-Ethyl thioacetate).

References
By selecting the following links, you may be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to cccbdb@nist.gov.
squib reference DOI
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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


Browse
PreviousNext