248954-04-3

Basic information

• Product Name: 3,7-bis[2-(methylsulfinyl)phenyl]dibenzothiophene
• Synonyms: 3,7-bis[2-(methylsulfinyl)phenyl]dibenzothiophene
• CAS NO: 248954-04-3
• Molecular Weight: 460.642
• Mol File: 248954-04-3.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 3,7-bis[2-(methylsulfinyl)phenyl]dibenzothiophene(CAS DataBase Reference)
• NIST Chemistry Reference: 3,7-bis[2-(methylsulfinyl)phenyl]dibenzothiophene(248954-04-3)
• EPA Substance Registry System: 3,7-bis[2-(methylsulfinyl)phenyl]dibenzothiophene(248954-04-3)

Safety Data

• Hazardous Substances Data: 248954-04-3(Hazardous Substances Data)

Upstream product

• 126218-83-5 1-bromo-2-(methylsulfinyl)benzene 
• 83834-10-0 3,7-dibromodibromodibenzo[b,d]thiophene 
• 132-65-0 dibenzothiophene 
• 1378383-16-4 3,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)dibenzo[b,d]thiophene 
• 19614-16-5 2-bromo-1-(methylsulfanyl)benzene 
• 83834-12-2 3,7-dibromo-dibenzothiophene-5,5-dioxide 
• 1016-05-3 dibenzothiophene sulfone 

Relevant articles and documents

Dibenzothienobisbenzothiophene - A novel fused-ring oligomer with high field-effect mobility

Conjugated oligomers with rigid, fused-ring structure are of interest for organic field-effect transistors where strong π-π interaction between adjacent molecules is required to obtain high charge carrier mobilities. Dibenzo[b,b']thieno[2,3-f:5,4-f']bis[1]benzothiophene (DBTBT) has been synthesized by a novel route, the key step of which is the acid-induced intramolecular cyclization reaction of aromatic methyl sulfoxides. Field- effect transistors (FETs) with thin, polycrystalline DBTBT films deposited by vacuum sublimation exhibit high field-effect mobilities of 0.15 cm2 (Vs)-1 and ON-OFF current ratios > 106. The coupling reaction is not regioselective and different regioisomers have been identified. Degraded FET performance is observed when the sublimed films contain a mixture of different isomers.