Chemical Properties of Tetrathiafulvalene (CAS 31366-25-3)

InChI

InChI=1S/C6H4S4/c1-2-8-5(7-1)6-9-3-4-10-6/h1-4H

InChI Key

FHCPAXDKURNIOZ-UHFFFAOYSA-N

Formula

C6H4S4

SMILES

C1=CSC(=C2SC=CS2)S1

Molecular Weight¹

204.36

CAS

31366-25-3

Other Names

• 1,3-Dithiole, 2-(1,3-dithiol-2-ylidene)-
• 1,4,5,8-Tetrathiafulvalene
• «DELTA»2,2'-Bi-1,3-dithiole
• «delta»-2:2'-bis(1,3-dithiazole)
• «DELTA»2,2'-Bi-1,3-dithiole
• «delta»-2:2'-bis(1,3-dithiazole)

• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_subH : Enthalpy of sublimation at a given temperature (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔcH°solid	-5619.50 ± 1.70	kJ/mol	NIST
ΔfG°	318.22	kJ/mol	Joback Calculated Property
ΔfH°gas	325.91	kJ/mol	Joback Calculated Property
ΔfH°solid	290.80 ± 1.70	kJ/mol	NIST
ΔfusH°	14.54	kJ/mol	Joback Calculated Property
ΔvapH°	55.53	kJ/mol	Joback Calculated Property
IE	[6.30; 7.00]	eV
IE	Outlier 6.30	eV	NIST
IE	7.00	eV	NIST
IE	6.72	eV	NIST
IE	6.83	eV	NIST
IE	6.92 ± 0.03	eV	NIST
IE	6.83	eV	NIST
log10WS	-5.18		Crippen Calculated Property
logPoct/wat	4.015		Crippen Calculated Property
McVol	126.180	ml/mol	McGowan Calculated Property
Pc	5791.74	kPa	Joback Calculated Property
Tboil	575.34	K	Joback Calculated Property
Tc	890.86	K	Joback Calculated Property
Tfus	548.78	K	Joback Calculated Property
Vc	0.398	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[231.96; 276.43]	J/mol×K	[575.34; 890.86]
Cp,gas	231.96	J/mol×K	575.34	Joback Calculated Property
Cp,gas	241.66	J/mol×K	627.93	Joback Calculated Property
Cp,gas	250.21	J/mol×K	680.51	Joback Calculated Property
Cp,gas	257.80	J/mol×K	733.10	Joback Calculated Property
Cp,gas	264.59	J/mol×K	785.69	Joback Calculated Property
Cp,gas	270.74	J/mol×K	838.27	Joback Calculated Property
Cp,gas	276.43	J/mol×K	890.86	Joback Calculated Property
ΔsubH	[92.00; 95.00]	kJ/mol	[345.00; 351.00]
ΔsubH	95.00 ± 1.00	kJ/mol	345.00	NIST
ΔsubH	92.00 ± 6.30	kJ/mol	351.00	NIST
ΔvapH	95.30	kJ/mol	343.00	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.65]	kPa	[456.55; 601.24]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			2.10780e+01
Coefficient B			-9.44085e+03
Coefficient C			-2.45000e+00
Temperature range, min.			456.55
Temperature range, max.			601.24
Pvap	1.33	kPa	456.55	Calculated Property
Pvap	2.71	kPa	472.63	Calculated Property
Pvap	5.27	kPa	488.70	Calculated Property
Pvap	9.81	kPa	504.78	Calculated Property
Pvap	17.58	kPa	520.86	Calculated Property
Pvap	30.40	kPa	536.93	Calculated Property
Pvap	50.92	kPa	553.01	Calculated Property
Pvap	82.83	kPa	569.09	Calculated Property
Pvap	131.17	kPa	585.16	Calculated Property
Pvap	202.65	kPa	601.24	Calculated Property

Similar Compounds

Find more compounds similar to Tetrathiafulvalene.

Sources

• Crippen Method
• Crippen Method
• Joback Method
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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Outlier This icon means that the value is more than 2 standard deviations away from the property mean.