3140-93-0

Basic information

• Product Name: 2,3-Dibromothiophene
• Synonyms: 2,3-DibroMothiophene 98%, 3-DibroMothiophene 98%;BUTTPARK 146\50-38;2,3-DIBROMOTHIOPHENE;AKOS 91257;2,3-Dibromothiophene, 98+%;2,3-Dibromothiophene,97%;Thiophene, 2,3-dibromo-;2,3-Dibromothiophene 98%
• CAS NO: 3140-93-0
• Molecular Formula: C₄H₂Br₂S
• Molecular Weight: 241.93
• EINECS: 221-542-6
• Product Categories: Heterocycle-oher series;Thiophenes;Thiophene&Benzothiophene;Miscellaneous;Thiophens;Halogenated Heterocycles;Heterocyclic Building Blocks;ThiophenesBuilding Blocks;Thiophene Series;Heterocycles;Sulfur & Selenium Compounds;Building Blocks;C4 to C6;Chemical Synthesis;Halogenated Heterocycles;Heterocyclic Building Blocks
• Mol File: 3140-93-0.mol
• Article Data: 16

Chemical Properties

• Melting Point: -17.5°C
• Boiling Point: 218-219 °C(lit.)
• Flash Point: 125 °F
• Appearance: /liquid
• Density: 2.137 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.155mmHg at 25°C
• Refractive Index: n20/D 1.632(lit.)
• Storage Temp.: Flammables area
• Sensitive: Light Sensitive
• BRN: 107512
• CAS DataBase Reference: 2,3-Dibromothiophene(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3-Dibromothiophene(3140-93-0)
• EPA Substance Registry System: 2,3-Dibromothiophene(3140-93-0)

Safety Data

• Hazard Codes: Xn,F,Xi,T
• Statements: 10-36/37/38-20/21/22-36-25
• Safety Statements: 23-24/25-36/37/39-26-16-36-45
• RIDADR: UN 1993 3/PG 3
• WGK Germany: 3
• F: 8
• HazardClass: 3
• PackingGroup: III
• Hazardous Substances Data: 3140-93-0(Hazardous Substances Data)

Usage

Chemical Properties

clear yellowish to brownish liquid

Uses

2,3-Dibromothiophene (cas# 3140-93-0) is a compound useful in organic synthesis.

InChI:InChI=1/C4H2Br2S/c5-3-1-2-7-4(3)6/h1-2H

Upstream product

• 3141-24-0 2,3,5-tribromothiophene 
• 925-90-6 ethylmagnesium bromide 
• 872-31-1 3-Bromothiophene 
• 128-08-5 N-Bromosuccinimide 
• 630-25-1 1,2-dibromo-1,1,2,2-tetrachloroethane 
• 7726-95-6 bromine 
• 77998-63-1 (4,5-dibromothiophen-2-yl)trimethylsilane 
• 6324-10-3 4,5-Dibromo-thiophene-2-carboxylic acid 

Downstream Products

• 930-96-1 3-bromo-2-thiophenecarboxaldehyde 
• 14806-34-9 3-bromo-2-t-butoxythiophene 
• 7311-64-0 3-bromothiophene-2-carboxylic acid 
• 188290-36-0 thiophene 
• 16839-97-7 2-methoxythiophene 
• 17573-92-1 3-methoxy-thiophene 
• 114143-27-0 2,3-dimethoxythiophene 
• 38071-56-6 3-bromo-2-cyclohex-1-enyl-thiophene 
• 26137-09-7 2-(α-hydroxybenzyl)-3-bromothiophene 
• 23688-07-5 3,5-dibromo-2-thiophenecarboxaldehyde 
• 62673-69-2 2-chloro-1-(4,5-dibromothiophen-2-yl)ethanone 
• 153143-04-5 2,3-di(ethynyl)thiophene 
• 130995-13-0 3-(trimethylsilylethynyl)thiophene 
• 150296-40-5 2,3-bis<(trimethylsilyl)ethynyl>thiophene 

Relevant articles and documents

Synthesis, optical and electrochemical properties new donor-acceptor (D-A) copolymers based on benzo [1,2-b:3,4-b′:6,5-b″] trithiophene donor and different acceptor units: Application as donor for photovoltaic devices

Two new conjugated D-A polymers P3 (PBTT-d-BTT) and P4 (PBTT-d-TPD) based on same benzo[1,2-b:3,4-b′:6,5-b″] trithiophene (BTT) donor and different acceptors monomers 5,8-dibromo-2-dodecanoylbenzo[1,2-b:3,4-b′:6,5-b″] trithiophene (d-BTT), and 1,3-dibromo-5-(2-ethylhexyl)thieno[3,4]pyrrol-4,6-dione (d-TPD) respectively, were synthesized by Stille cross-coupling reaction and characterized by gel permeation chromatography (GPC), 1H NMR, UV-Vis absorption, thermal analysis and electrochemical cyclic voltammetry (CV) tests. Photovoltaic properties of the polymers were studied by using the polymers as donor and PC71BM as acceptor with a weight ratio of polymer:PC71BM 1:1, 1:2 and 1:2.5. The optimized photovoltaic device was fabricated with an active layer of a blend P3:PC71BM and P4:PC71BM with a blend ratio of 1:2 showed PCE 3.16% and 2.42%, respectively under illumination of AM 1.5 at 100 mW/cm2 with solar simulator. The PCE of the device based on P3:PC71BM processed with DIO/o-DCB has been further improved up to 4.64% with Jsc of 10.52 mA/cm2 and FF of 0.58 attributed to the increase in crystalline nature of active layer and more balanced charge transport in the device, induced by DIO additive.

BIARYL HYDROXYTHIOPHENE GROUP IV TRANSITION METAL POLYMERIZATION CATALYSTS WITH CHAIN TRANSFER CAPABILITY

Catalyst systems that include a chain transfer agent and a metal-ligand complex according to formula (I).

Synthesis, optical and electrochemical properties new donor-acceptor (D-A) copolymers based on benzo[1,2-b:3,4-b′:6,5-b″] trithiophene donor and different acceptor units: Application as donor for photovoltaic devices

Two new conjugated D-A polymers P3 (PBTT-d-BTT) and P4 (PBTT-d-TPD) based on same benzo[1,2-b:3,4-b′:6,5-b″] trithiophene (BTT) donor and different acceptors monomers 5,8-dibromo-2-dodecanoylbenzo[1,2-b:3,4-b′:6,5-b″] trithiophene (d-BTT), and 1,3-dibromo-5-(2-ethylhexyl)thieno[3,4]pyrrol-4,6-dione (d-TPD) respectively, were synthesized by Stille cross-coupling reaction and characterized by gel permeation chromatography (GPC), 1H NMR, UV-Vis absorption, thermal analysis and electrochemical cyclic voltammetry (CV) tests. Photovoltaic properties of the polymers were studied by using the polymers as donor and PC71BM as acceptor with a weight ratio of polymer:PC71BM 1:1, 1:2 and 1:2.5. The optimized photovoltaic device was fabricated with an active layer of a blend P3:PC71BM and P4:PC71BM with a blend ratio of 1:2 showed PCE 3.16% and 2.42%, respectively under illumination of AM 1.5 at 100 mW/cm2 with solar simulator. The PCE of the device based on P3:PC71BM processed with DIO/o-DCB has been further improved up to 4.64% with Jsc of 10.52 mA/cm2 and FF of 0.58 attributed to the increase in crystalline nature of active layer and more balanced charge transport in the device, induced by DIO additive.