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Experimental data for C4H4S (Thiophene)

22 02 02 11 45
Other names
CP 34; Divinylene sulfide; Furan, Thio-; Huile H50; Huile HSO; Thiacyclopentadiene; Thiaphene; Thiofen; Thiofuram; Thiofuran; Thiofurfuran; Thiole; Thiophen; Thiophene; Thiotetrole; USAF ek-1860;
INChI INChIKey SMILES IUPAC name
InChI=1S/C4H4S/c1-2-4-5-3-1/h1-4H YTPLMLYBLZKORZ-UHFFFAOYSA-N C1=CC=CS1 Thiophene
State Conformation
1A1 C2V
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 114.90   kJ mol-1 1995Dor/Gur:1351
Hfg(0K) enthalpy of formation 127.18   kJ mol-1 1995Dor/Gur:1351
Entropy (298.15K) entropy 278.77   J K-1 mol-1 1995Dor/Gur:1351
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 13.28   kJ mol-1 1995Dor/Gur:1351
Heat Capacity (298.15K) heat capacity 72.82   J K-1 mol-1 1995Dor/Gur:1351
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 A1 3126   Shim      
2 A1 3098   Shim      
3 A1 1409   Shim      
4 A1 1360   Shim      
5 A1 1083   Shim      
6 A1 1036   Shim      
7 A1 872   Shim      
8 A1 608   Shim      
9 A2 867   Shim      
10 A2 688   Shim      
11 A2 567   Shim      
12 B1 839   Shim      
13 B1 712   Shim      
14 B1 452   Shim      
15 B2 3125   Shim      
16 B2 3086   Shim      
17 B2 1504   Shim      
18 B2 1256   Shim      
19 B2 1085   Shim      
20 B2 903   Shim      
21 B2 751   Shim      

vibrational zero-point energy: 14213.5 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for C4H4S (Thiophene).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.26825 0.18073 0.10793 1966Herzberg

Calculated rotational constants for C4H4S (Thiophene).
Product of moments of inertia moments of inertia
915528.4amu3Å6   4.19217908051625E-114gm3 cm6
Geometric Data
picture of Thiophene

Point Group C2v


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
rCS 1.714   1 2 1966Herzberg
rCC 1.370   2 4 1966Herzberg
rCC 1.423   4 5 1966Herzberg
rCH 1.079   2 6 1966Herzberg
aCSC 92.2 2 1 3 1966Herzberg
aCCS 111.5 1 2 4 1966Herzberg
aCCC 112.4 2 4 5 1966Herzberg
aHCC 124.3 2 4 8 1966Herzberg
aHCS 119.9 1 2 6 1966Herzberg
aHCC 128.6 4 2 6 1966Herzberg by symmetry
aHCC 123.3 5 4 8 1966Herzberg by symmetry

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for C4H4S (Thiophene).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
C-S 2
C=C 2
C-C 1
H-C 4

Connectivity
Atom 1 Atom 2
S1 C2
S1 C3
C2 C4
C2 H6
C3 C5
C3 H7
C4 C5
C4 H8
C5 H9
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
8.860 0.020 8.860   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 1A1 C2v True       0.550 NSRDS-NBS10 +0.01 DT C2v 1 2
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 C4H4S (Thiophene).
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 1A1 C2v True -8.300 6.600 1.700 1971Fly/Ben:225 Qxx=1.7+-1.6, Qyy=6.6+-1.5, Qzz=-8.3+-2.2 C2v 1 2

Calculated electric quadrupole moments for C4H4S (Thiophene).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
9.010   1998Gus/Rui:163

Calculated electric dipole polarizability for C4H4S (Thiophene).

References
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squib reference DOI
1966Herzberg Herzberg, G., Electronic spectra and electronic structure of polyatomic molecules,Van Nostrand,New York, 1966  
1971Fly/Ben:225 WH Flygare, RC Benson "The molecular Zeeman effect in diamagnetic molecules and the determination of molecular magnetic moments (g values), magnetic susceptibilities, and molecular quadrupole moments" Mol. Phys. 1971, 20 (2), 225-250 10.1080/00268977100100221
1995Dor/Gur:1351 Dorofeeva and Gurvich. Ideal Gas Thermodynamic Properties of Sulphur Heterocyclic Compounds. J. Phys. Chem. Ref. Data. Vol. 24. #3. pgs. 1351-1376. 10.1063/1.555962
1998Gus/Rui:163 M Gussoni, R Rui, G Zerbi "Electronic and relaxation contribution to linear molecular polarizability. An analysis of the experimental values" J. Mol. Struct. 447 (1998) 163-215 10.1016/S0022-2860(97)00292-5
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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