190723-14-9

Basic information

• Product Name: 1,3-Dibromo-5-butyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
• Synonyms: 1,3-Dibromo-5-butyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
• CAS NO: 190723-14-9
• Molecular Formula: C10H9Br2NO2S
• Molecular Weight: 367.05696
• Mol File: 190723-14-9.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1,3-Dibromo-5-butyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-Dibromo-5-butyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione(190723-14-9)
• EPA Substance Registry System: 1,3-Dibromo-5-butyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione(190723-14-9)

Safety Data

• Hazardous Substances Data: 190723-14-9(Hazardous Substances Data)

Usage

Chemical composition

The compound is composed of bromine, butyl, and thieno pyrrole.

Physical state

It is a dark yellow solid powder.

Potential applications

It has been studied for its potential applications in organic electronics and optoelectronic devices.

Electronic and optical properties

The compound has unique electronic and optical properties that make it suitable for use in organic electronics and optoelectronic devices.

Semiconducting material

It has shown potential as a semiconducting material for use in organic photovoltaic cells and organic field-effect transistors.

Research and development

Its chemical structure and properties make it a promising candidate for further research and development in the field of organic semiconductors.

Upstream product

• 18853-32-2 3,4-dicyanothiophene 
• 1428567-53-6 5-butyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione 
• 4282-29-5 thiophene-3,4-dicarboxylic acid 
• 1056841-63-4 2,5-dibromo-3,4-dicyanothiophene 
• 109-73-9 N-butylamine 
• 197370-01-7 2,5-dibromothiophene-3,4-dicarboxylic acid chloride 
• 190723-12-7 2,5-dibromo-3,4-dicarboxylic acid thiophene 

Relevant articles and documents

Low optical bandgap polythiophenes by an alternating donor/acceptor repeat unit strategy [16]

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Alternating donor/acceptor repeat units in polythiophenes. Intramolecular charge transfer for reducing band gaps in fully substituted conjugated polymers

This paper describes a method to limit the band gap widening that occurs in fully substituted conjugated polymers. This is done by constructing step growth [AB] polymers where the A-units are electron rich and the B-units are electron deficient. The thiophene-based polymers were prepared by modified Stille polymerizations using Pd(0)/CuI catalyst systems in which aryldibromides were coupled with aryldistannanes. The donor units were N,N′-(bis-tert-butoxycarbonyl)-3,4-diaminothiophene, N,N′-(bis-tert-butoxycarbonyl)-N,N′-(dimethyl)-3,4-diaminothiophene, 3,4-diaminothiophene, or 3,4-dialkoxythiophenes while the acceptor units were 3,4-dinitrothiophene, 3,4-(N-n-butylimido)thiophene, or 3,4-diketone-containing thiophenes. The optical spectra showed λmax values ranging from 400 to 676 nm (solution) and 400-768 (film) for these fully substituted polythiophenes, consistent with significant decreases in the band gaps. Intramolecular charge transfer character between the consecutive units explained the lowering of the band gaps. Two polymer systems based solely on electron deficient thiophenes were prepared via an Ullmann coupling which had optical absorption maxima that were in the range of 300-340 nm; considerably smaller than the λmax values for the donor/acceptor systems. Several model trimers were prepared which had significantly shorter wavelength optical absorptions than their corresponding polymers, thus confirming the need for the extended polymeric backbones.