636588-79-9

Basic information

• Product Name: 2,6-Dibromo-4H-cyclopenta-[1,2-b:5,4-b']dithiophen-4-one
• Synonyms: 2,6-Dibromo-4H-cyclopenta-[1,2-b:5,4-b']dithiophen-4-one;2,6-dibromo-4H-cyclopenta[2,1-b:3,4-b′]dithiophen-4-one
• CAS NO: 636588-79-9
• Molecular Formula: C9H2Br2OS2
• Molecular Weight: 350.04958
• Mol File: 636588-79-9.mol
• Article Data: 16

Chemical Properties

• Boiling Point: 456.6±45.0 °C(Predicted)
• Appearance: /
• Density: 2.241±0.06 g/cm3(Predicted)
• Storage Temp.: 2-8°C
• CAS DataBase Reference: 2,6-Dibromo-4H-cyclopenta-[1,2-b:5,4-b']dithiophen-4-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2,6-Dibromo-4H-cyclopenta-[1,2-b:5,4-b']dithiophen-4-one(636588-79-9)
• EPA Substance Registry System: 2,6-Dibromo-4H-cyclopenta-[1,2-b:5,4-b']dithiophen-4-one(636588-79-9)

Safety Data

• Hazardous Substances Data: 636588-79-9(Hazardous Substances Data)

Usage

General Description

2,6-Dibromo-4H-cyclopenta[1,2-b:5,4-b']dithiophen-4-one is a chemical compound with the molecular formula C10H4Br2OS2. It is a heterocyclic compound with a fused ring system containing bromine and sulfur atoms. 2,6-Dibromo-4H-cyclopenta-[1,2-b:5,4-b']dithiophen-4-one is commonly used in the synthesis of organic semiconductors and has potential applications in optoelectronic devices and organic field-effect transistors. Its unique structure and properties make it a valuable building block for the development of new materials for electronic and photonic applications.

Upstream product

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• 25796-77-4 4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one 
• 1187970-48-4 2,6-bis(trimethylsilyl)-4H-cyclopenta[2,1-b:3,4-b′]dithiophen-4-one 

Relevant articles and documents

Novel conjugated copolymers with dithienyl and cyclopentadithienyl substituted dicyanoethene acceptor blocks

Novel bifunctional acceptor monomer, 2-[bis(5-bromothiophen-2-yl)methylidene]malononitrile, is obtained in three steps in a total yield of 79%. The Stille cross-coupling between this monomer and 2,6-ditin derivative of 4,4-didecyl-4H-silolo[3,2-b: 4,5-b′]dithiophene afforded donor–acceptor polymer whose properties were compared to the analogue containing a planar cyclopenta[2,1-b: 3,4-b′]dithiophene acceptor block. The copolymers have low narrow optical band gaps and effectively absorb visible light, however the former possesses improved solubility and thermal stability as compared to the latter.

Rethinking Uncaging: A New Antiaromatic Photocage Driven by a Gain of Resonance Energy

Photoactivatable compounds for example photoswitches or photolabile protecting groups (PPGs, photocages) for spatiotemporal light control, play a crucial role in different areas of research. For each application, parameters such as the absorption spectrum, solubility in the respective media and/or photochemical quantum yields for several competing processes need to be optimized. The design of new photochemical tools therefore remains an important task. In this study, we exploited the concept of excited-state-aromaticity, first described by N. Colin Baird in 1971, to investigate a new class of photocages, based on cyclic, ground-state-antiaromatic systems. Several thio- and nitrogen-functionalized compounds were synthesized, photochemically characterized and further optimized, supported by quantum chemical calculations. After choosing the optimal scaffold, which shows an excellent uncaging quantum yield of 28 %, we achieved a bathochromic shift of over 100 nm, resulting in a robust, well accessible, visible light absorbing, compact new photocage with a clean photoreaction and a high quantum product (??Φ) of 893 M?1 cm?1 at 405 nm.

A two-thieno cyclopentanone compound and its preparation method and application (by machine translation)

The present invention discloses a two-thieno cyclopentanone compound and its preparation method and application, which belongs to the technical field of solar cell. Said two thiophene and cyclopentanone compound, the structure of the formula I as shown: Wherein L1 , L2 Respectively and independently represent a hydrogen atom or R, and L1 , L2 At least one is a R. The invention also discloses the above-mentioned two thiophene and cyclopentanone compound of preparation method and application. The compounds of this invention introduced two fragrant amines group is branched, can make the molecule has space three-dimensional structure, to avoid material crystallization; introduced two thiophene and cyclopentanone can greatly improve the thermal stability of the material. (by machine translation)