1221821-39-1

Basic information

• Product Name: 6-bromo-4,4-dihexyl-4H-cyclopenta[2,1-b:3,4-b′]dithiophene-2-carbaldehyde
• Synonyms: 6-bromo-4,4-dihexyl-4H-cyclopenta[2,1-b:3,4-b′]dithiophene-2-carbaldehyde
• CAS NO: 1221821-39-1
• Molecular Weight: 453.508
• Mol File: 1221821-39-1.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 6-bromo-4,4-dihexyl-4H-cyclopenta[2,1-b:3,4-b′]dithiophene-2-carbaldehyde(CAS DataBase Reference)
• NIST Chemistry Reference: 6-bromo-4,4-dihexyl-4H-cyclopenta[2,1-b:3,4-b′]dithiophene-2-carbaldehyde(1221821-39-1)
• EPA Substance Registry System: 6-bromo-4,4-dihexyl-4H-cyclopenta[2,1-b:3,4-b′]dithiophene-2-carbaldehyde(1221821-39-1)

Safety Data

• Hazardous Substances Data: 1221821-39-1(Hazardous Substances Data)

Upstream product

• 389-58-2 4H-cyclopenta[2,1-b;3,4-b']dithiophene 
• 25796-77-4 4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one 
• 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 
• 498-62-4 3-thiophene carboxaldehyde 
• 153312-86-8 4,4-dihexyl-4H-cyclopenta[1,2-b:5,4-b’]dithiophene 
• 1221821-38-0 4,4-dihexyl-4H-cyclopenta[2,1-b;3,4-b']dithiophene-2-carbaldehyde 

Downstream Products

• 1393597-97-1 6-(5-(bis(4-(hexyloxy)phenyl)amino) thiophen-2-yl)-4,4-dihexyl-4H-cyclopenta[1,2-b:5,4-b']dithiophene-2-carbaldehyde 
• 1393597-99-3 (E)-3-(6-(5-(bis(4-(hexyloxy)phenyl)amino)thiophen-2-yl)-4,4-dihexyl-4H-cyclopenta[1,2-b:5,4-b']dithiophen-2-yl)-2-cyanoacrylic acid 
• 1393597-98-2 6-(2-(bis(4-(hexyloxy)phenyl)amino)thiazol-5-yl)-4,4-dihexyl-4H-cyclopenta[1,2-b:5,4-b']dithiophene-2-carbaldehyde 
• 1393598-00-9 C₅₂H₆₅N₃O₄S₃ 
• 1315276-46-0 6-[4-(diphenylamino)phenyl]-4,4-dihexyl-4H-cyclopenta[2,1-b:3,4-b′]dithiophene-2-carbaldehyde 

Relevant articles and documents

A versatile synthesis of long-wavelength-excitable BODIPY dyes from readily modifiable cyclopenta[2,1- B:3,4- B′ ]dithiophenes

Knoevenagel condensation of a simple methylated borondipyrromethene (Bodipy) with 4,4′-dihexyl-4H-cyclopenta-[2,1-b:3,4-b′]dithiophenes functionalized at one end by a triphenylamine residue and at the other by a carbaldehyde fragment leads to novel dye species. These bisvinylic derivatives exhibit pronounced absorption in the visible range extending above 850 nm. Addition of other Bodipy units by coupling to a central iodophenyl entity enables filling of the gaps in absorption of the pivotal starting material. Efficient cascade energy transfer between the Bodipys is facilitated by spectral overlap between the energy donor and the energy acceptor. All photons between 350 nm and 750 nm are channeled to the distyryl centers which emit at 864 nm. Georg Thieme Verlag Stuttgart. New York.

Fine-tuning the electronic structure of organic dyes for dye-sensitized solar cells

A series of metal-free organic dyes exploiting different combinations of (hetero)cyclic linkers (benzene, thiophene, and thiazole) and bridges (4H-cyclopenta[2,1-b:3,4-b′]dithiophene (CPDT) and benzodithiophene (BDT)) as the central π-spacers were synthesized and characterized. Among them, the sensitizer containing the thiophene and CPDT showed the most broad incident photon-to-current conversion efficiency spectra, resulting in a solar energy conversion efficiency (η) of 6.6%.