1246949-11-0

Basic information

• Product Name: 4,7-bis[5-bromo-4-(2-ethyhexyl)-2-thienyl]-2,1,3-benzothiadiazole
• Synonyms: 4,7-bis[5-bromo-4-(2-ethyhexyl)-2-thienyl]-2,1,3-benzothiadiazole
• CAS NO: 1246949-11-0
• Molecular Formula: C30H38Br2N2S3
• Molecular Weight: 682.63912
• EINECS: -0
• Mol File: 1246949-11-0.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 654.5±50.0 °C(Predicted)
• Appearance: /
• Density: 1.349±0.06 g/cm3(Predicted)
• PKA: -1.58±0.50(Predicted)
• CAS DataBase Reference: 4,7-bis[5-bromo-4-(2-ethyhexyl)-2-thienyl]-2,1,3-benzothiadiazole(CAS DataBase Reference)
• NIST Chemistry Reference: 4,7-bis[5-bromo-4-(2-ethyhexyl)-2-thienyl]-2,1,3-benzothiadiazole(1246949-11-0)
• EPA Substance Registry System: 4,7-bis[5-bromo-4-(2-ethyhexyl)-2-thienyl]-2,1,3-benzothiadiazole(1246949-11-0)

Safety Data

• Hazardous Substances Data: 1246949-11-0(Hazardous Substances Data)

Usage

General Description

4,7-bis[5-bromo-4-(2-ethyhexyl)-2-thienyl]-2,1,3-benzothiadiazole is a chemical compound that belongs to the benzothiadiazole family. It is a heterocyclic aromatic compound that contains two thienyl groups and two bromine atoms. 4,7-bis[5-bromo-4-(2-ethyhexyl)-2-thienyl]-2,1,3-benzothiadiazole is commonly used as a building block for the synthesis of organic semiconductors, such as in the production of organic photovoltaic devices. Its unique structure and electronic properties make it a favorable candidate for applications in optoelectronic devices, including OLEDs and organic field-effect transistors. The presence of bromine atoms and thienyl groups in its structure contributes to its favorable electronic and optical properties, making it an important chemical in the field of semiconductor materials.

Upstream product

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• 121134-38-1 3-(2-ethylhexyl)thiophene 
• 1254834-10-0 4,7-bis(4-(2-ethylhexyl)thiophen-2-yl)benzo[c][1,2,5]thiadiazole 
• 18908-66-2 3-bromomethylheptane 

Relevant articles and documents

Tuning energy levels of low bandgap semi-random two acceptor copolymers

A series of low bandgap semi-random copolymers incorporating various ratios of two acceptor units - thienothiadiazole and benzothiadiazole - were synthesized by Pd-catalyzed Stille coupling. The polymer films exhibited broad and intense absorption spectra, covering the spectral range from 350 nm up to 1240 nm. The optical bandgaps and HOMO levels of the polymers were calculated from ultraviolet-visible spectroscopy and cyclic voltammetry measurements, respectively. By changing the ratio of the two acceptor monomers, the HOMO levels of the polymers were tuned from -4.42 to -5.28 eV and the optical bandgaps were varied from 1.00 to 1.14 eV. The results indicate our approach could be applied to the design and preparation of conjugated polymers with specifically desired energy levels and bandgaps for photovoltaic applications.

Novel 4,8-benzobisthiazole copolymers and their field-effect transistor and photovoltaic applications

A series of copolymers containing the benzo[1,2-d:4,5-d′]bis(thiazole) (BBT) unit has been designed and synthesised with bisthienyl-diketopyrrolopyrrole (DPP), dithienopyrrole (DTP), benzothiadiazole (BT), benzodithiophene (BDT) or 4,4′-dialkoxybithiazole (BTz) comonomers. The resulting polymers possess a conjugation pathway that is orthogonal to the more usual substitution pathway through the 2,6-positions of the BBT unit, facilitating intramolecular non-covalent interactions between strategically placed heteroatoms of neighbouring monomer units. Such interactions enable a control over the degree of planarity through altering their number and strength, in turn allowing for tuning of the band gap. The resulting 4,8-BBT materials gave enhanced mobility in p-type organic field-effect transistors of up to 2.16 × 10-2 cm2 V-1 s-1 for pDPP2ThBBT and good solar cell performance of up to 4.45% power conversion efficiency for pBT2ThBBT.