365547-21-3

Basic information

• Product Name: 2,6-Dibromo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene
• Synonyms: 2,6-Dibromo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene;DBCPDP;2,6-DibroMo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b;2,6-DibroMo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[1,2-b:5,4-b']dithiophene;4H-Cyclopenta[2,1-b:3,4-b']dithiophene, 2,6-dibroMo-4,4-bis(2-ethylhexyl)-;2,6-Dibromo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene;2,6-dibromo-4,4-di-(2-ethylhexyl)-4H-cyclopenta[2,1-b;2,6-Dibromo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b
• CAS NO: 365547-21-3
• Molecular Formula: C25H36Br2S2
• Molecular Weight: 560.49134
• Product Categories: DBCPDP
• Mol File: 365547-21-3.mol
• Article Data: 13

Chemical Properties

• Boiling Point: 552.1±50.0 °C(Predicted)
• Appearance: /
• Density: 1.297
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• CAS DataBase Reference: 2,6-Dibromo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene(CAS DataBase Reference)
• NIST Chemistry Reference: 2,6-Dibromo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene(365547-21-3)
• EPA Substance Registry System: 2,6-Dibromo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene(365547-21-3)

Safety Data

• Hazardous Substances Data: 365547-21-3(Hazardous Substances Data)

Usage

Description

2,6-dibromo-4,4-bis(2-ethylhexyl)-4H-cyclopenta[1,2-b:5,4-b']dithiophene, with two thiophene units confined to one plane, cyclopenta[2,1-b;3,4-b′]dithiophene compounds allow?more effective conjugation if embedded into semiconducting polymers which in turn will have lowers the band gap. Furthermore, the planar structure will have greater effect on the morphology for the thin film devices to allow a well packed polymer?to polymer?backbones?which will bring the third-dimension into play. Take PCPDTBT for example, the planar structure improves the hole mobility of the device to 1 x 10-3 cm2/Vs.

Uses

suzuki reaction

Upstream product

• 365547-20-2 4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene 
• 78196-93-7 (4H-cyclopenta<2,1-b:3,4-b'>dithiophene)-4-carboxylic acid 
• 18908-66-2 3-bromomethylheptane 
• 389-58-2 4H-cyclopenta[2,1-b;3,4-b']dithiophene 
• 474416-61-0 bis(2-iodo-3-thienyl)methanone 
• 474416-59-6 bis(2-iodothiophen-3-yl)methanol 
• 31936-92-2 1,1-di(thien-3-yl)-methanol 
• 25796-77-4 4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one 
• 498-62-4 3-thiophene carboxaldehyde 

Downstream Products

• 920515-35-1 2,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4,4-di(2-ethylhexyl)-4H-cyclopenta-[2,1-b:3,4-b']dithiophene 
• 920504-00-3 4,4-bis(2-ethylhexyl)-2,6-bis(trimethylstannyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene 

Relevant articles and documents

Synthesis and characterization of donor-bridge-acceptor alternating copolymers containing perylene diimide units and their application to photovoltaic cells

We have used Suzuki coupling to prepare a series of alternating copolymers featuring coplanar cyclopentadithiophene and hole-transporting carbazole units, We observed quenching in the photoluminescence spectra of our polymers after incorporating pendent electron-deficient perylene diimlde (PDI) moieties on the side chains, indicating more efficient photoinduced electron transfer, Electrochemical measurements revealed that the PDI-containing copolymers displayed reasonable and sufficient offsets of the energy levels of their lowest unoccupied molecular orbitais for efficient charge dissociation, The performance of bulk heterojunction photovoltaic cells incorporating the copolymer/[6, 6]-phenyl-C61-butyric acid methyl ester blends (1:4, w/w) was optimized when the active layer had a thickness of 70 nm, The photocurrents of the devices were enhanced as a result of the presence of the PDI moieties, thereby leading to improved power conversion efficiencies.

Planar quinone structure-containing small molecule organic semiconductor material and preparation and application thereof

The invention relates to a planar quinone structure-containing small molecule organic semiconductor material and preparation and application thereof. The general structural formula of the material isshown in a formula I. The prepared planar quinone structure-based small molecule material has good solubility, can be dissolved in common organic solvents, and organic optoelectronic devices can be prepared through processing of a solution of the small molecule organic semiconductor material; and the small molecule organic semiconductor material has good responses to solar spectra, and thus, can be used as an active layer material of organic solar cells, the migration ability of carriers can be improved due to good planarity of the small molecule organic semiconductor material, and therefore the small molecule organic semiconductor material can also be applied to preparation of active layer materials of organic field-effect transistors.

Compound used for forming high-molecular compound

The present invention provides a macromolecular compound by which the short-circuit current density and the photoelectric conversion efficiency are enhanced when the macromolecular compound is used in an organic layer contained in a photovoltaic cell. Specifically, the present invention provides a macromolecular compound having a structural unit represented by Formula (5): wherein R52 and R53 are the same as or different from each other and represent hydrogen atoms, halogen atoms, alkyl groups, alkyl oxygen radicals, alkyl sulfonium, aryl groups, aryl oxygen radicals, aryl sulfonium, aryl alkyl, aryl alkyl oxygen radicals, acyl groups, acyloxy, acylamino, imide groups, amidogen, substituted amino, substituted silicyl, substituted silicon alkyl oxygen radicals, substituted silicon alkyl harvard, silicon alkyl amine, univalent heterocyclic radical, heterocyclic oxygen radicals, heterocyclic sulfonium, aryl alkenyl, aryl alkynyl, carboxyl or cyan; W1 and W2 are the same as or different from each other and represent hydrogen atoms, halogen atoms, alkyl sulfonate base, aryl sulfonic acid ester base, aryl alkyl sulfonate base, boric acid ester residues, matte methyl, scales base, Phosphonic acid ester methyl, single halogenated methyl, boric acid residues, formyl groups, vinyl or organic tin residues.