66946-48-3

Basic information

• Product Name: BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE
• Synonyms: BIS-ETHYLENDITHIO-TETRATHIAFULVALENE;BI[5,6-DIHYDRO-1,3-DITHIOLO[4,5-B][1,4]-DITHIINE-2-YLIDENE];BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE, 9 8%;Bis(ethylenedithia)tetrathiafulvalene;BEDT-TIF;Bis(ethylenedithio)tetrathiafulvalene [Organic Electronic Material];BEDT-TTF, Bi[5,6-dihydro-1,3-dithiolo[4,5-b][1,4]-dithiine-2-ylidene];2-(5,6-Dihydro-1,3-dithiolo[4,5-b][1,4]dithiin-2-ylidene)-5,6-dihydro-1,3-dithiolo[4,5-b][1,4]dithiin
• CAS NO: 66946-48-3
• Molecular Formula: C₁₀H₈S₈
• Molecular Weight: 384.69
• Product Categories: Sulphur Derivatives;Donors (Charge Transfer Complexes);TTF Derivatives;Charge Transfer Complexes for Organic Metals;Functional Materials
• Mol File: 66946-48-3.mol
• Article Data: 14

Chemical Properties

• Melting Point: ~260 °C (dec.)(lit.)
• Boiling Point: 471.31°C (rough estimate)
• Flash Point: 268.416°C
• Appearance: /Powder
• Density: 1.9349 (rough estimate)
• Vapor Pressure: 0mmHg at 25°C
• Refractive Index: 1.6000 (estimate)
• Solubility: Soluble in organic solvents.
• BRN: 1653830
• CAS DataBase Reference: BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE(CAS DataBase Reference)
• NIST Chemistry Reference: BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE(66946-48-3)
• EPA Substance Registry System: BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE(66946-48-3)

Safety Data

• Safety Statements: 22-24/25
• WGK Germany: 3
• F: 8-9-23
• Hazardous Substances Data: 66946-48-3(Hazardous Substances Data)

Usage

Chemical Properties

RED LUSTROUS NEEDLES

Uses

It is used as a component for organic superconductors.

General Description

Bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) is an organic superconducting polymer that is used as an electron donor with a superconducting transition temperature (Tc) of 10K.

InChI:InChI=1/C10H8S8/c1-2-12-6-5(11-1)15-9(16-6)10-17-7-8(18-10)14-4-3-13-7/h1-4H2

Upstream product

• 930-35-8 1,3-dithiol-2-thione 
• 59089-89-3 4,5-Ethylenedithio-1,3-dithiole-2-thione 
• 74962-29-1 2,5,7,9-tetrathiabicyclo[4.3.0]non-1⁽⁶⁾-en-8-one 
• 158871-28-4 4,5-bis(2-cyanoethylthio)-1,3-dithiol-2-one 
• 307543-49-3 5-(tert-butyldiphenylsilyloxymethyl)-5,6-dihydro-1,3-dithiolo[4,5-b][1,4]dithiin-2-one 
• 16005-62-2 bis-4,5-(trifluoromethyl)-1,3-dithiole-2-thione 
• 337533-84-3 5-(4'-bromophenyl)-[1,3]dithiolo[4,5-b][1,4]dithiin-2-one 
• 337533-81-0 5-(4'-methoxyphenyl)-[1,3]dithiolo[4,5-b][1,4]dithiin-2-one 
• 625851-31-2 6-(4'-methoxyphenyl)thieno[2,3-d][1,3]dithiol-2-one 
• 337533-79-6 5-phenyl-[1,3]dithiolo[4,5-b][1,4]dithiin-2-one 
• 177544-77-3 5-phenyl-1,3-dithiolo<4,5-b>-1,4-dithiin-2-thione 
• 144868-69-9 4,5-bis(p-acetoxybenzylsulfanyl)-1,3-dithiol-2-one 
• 53059-75-9 1,3-Dithiolium tetrafluoroborate 
• 53808-62-1 4,5-dimethyl-2-selenoxo-1,3-diselenole 

Downstream Products

• 741268-81-5 [5,6]fullerene-C₇₀ 

Relevant articles and documents

Fluorine segregation in crystalline materials: Structural control and solid-state [2+2] cycloaddition in CF3-substituted tetrathiafulvalene derivatives

The well-known influence of long perfluorinated chains on the structures and stability of amphiphilic molecules in liquid crystalline mesophases or mesoscopic micellar arrangements is evaluated here in the realm of crystalline materials based on rigid aro

Functionalised organosulfur donor molecules: Synthesis of racemic hydroxymethyl-, alkoxymethyl- and dialkoxymethyl-bis(ethylenedithio)tetrathiafulvalenes

Short synthetic routes to racemic derivatives of bis(ethylenedithio)tetrathiafulvalene carrying one hydroxymethyl (HMET), alkoxymethyl or dialkoxymethyl side chain are reported along with cyclic voltammetry measurements and conversion of HMET to (2:1) radical cation salts.

An unusual reaction of Lawesson's reagent with 1,8-diketones: A synthesis of fused 1,4-dithiins and thiophenes

Reaction of 1,8-diketones 3 with Lawesson's reagent 8 resulted in the formation of five and six-membered rings 5-7, 18, depending on the nature of the substituents. Product 6 is converted in two steps to the unsymmetric 'ET' analogue 20, containing an extra double bond.