493029-01-9

Basic information

• Product Name: Benzoic acid, 5-bromo-2-(2-thienyl)-, methyl ester
• CAS NO: 493029-01-9
• Molecular Formula: C12H9BrO2S
• Molecular Weight: 297.172
• Mol File: 493029-01-9.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Benzoic acid, 5-bromo-2-(2-thienyl)-, methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Benzoic acid, 5-bromo-2-(2-thienyl)-, methyl ester(493029-01-9)
• EPA Substance Registry System: Benzoic acid, 5-bromo-2-(2-thienyl)-, methyl ester(493029-01-9)

Safety Data

• Hazardous Substances Data: 493029-01-9(Hazardous Substances Data)

Upstream product

• 181765-86-6 5-bromo-2-iodo-benzoic acid methyl ester 
• 45438-80-0 2-thienylzinc bromide 
• 193978-23-3 2-thiopheneboronic acid pinacol ester 
• 610-97-9 o-iodo-methyl-benzoic acid 

Downstream Products

• 1346266-90-7 C₁₁H₇BrO₂S 

Relevant articles and documents

Increasing the Efficiency of Organic Dye-Sensitized Solar Cells over 10.3% Using Locally Ordered Inverse Opal Nanostructures in the Photoelectrode

3D inverse opal (3D-IO) oxides are very appealing nanostructures to be integrated into the photoelectrodes of dye-sensitized solar cells (DSSCs). Due to their periodic interconnected pore network with a high pore volume fraction, they facilitate electrolyte infiltration and enhance light scattering. Nonetheless, preparing 3D-IO structures directly on nonflat DSSC electrodes is challenging. Herein, 3D-IO TiO2 structures are prepared by templating with self-assembled polymethyl methacrylate spheres on glass substrates, impregnation with a mixed TiO2:SiO2 precursor and calcination. The specific surface increases from 20.9 to 30.7 m2 g?1 after SiO2 removal via etching, which leads to the formation of mesopores. The obtained nanostructures are scraped from the substrate, processed as a paste, and deposited on photoelectrodes containing a mesoporous TiO2 layer. This procedure maintains locally the 3D-IO order. When sensitized with the novel benzothiadiazole dye YKP-88, DSSCs containing the modified photoelectrodes exhibit an efficiency of 10.35% versus 9.26% for the same devices with conventional photoelectrodes. Similarly, using the ruthenium dye N719 as sensitizer an efficiency increase from 5.31% to 6.23% is obtained. These improvements originate mainly from an increase in the photocurrent density, which is attributed to an enhanced dye loading obtained with the mesoporous 3D-IO structures due to SiO2 removal.

Molecular engineering of organic sensitizers with planar bridging units for efficient dye-sensitized solar cells

Here comes the sun: Three highly efficient organic sensitizers with sterically hindered fluorenyl units and planar indenothiophene derivatives were designed and synthesized (see figure). Devices based on one of these compounds, JK-303, gave overall conversion efficiencies of 8.69, 9.04, 7.27, and 5.82 % using I-/I3-, CoII/CoIII, polymer gel, and solid-state electrolytes, respectively. These efficiencies are some of the highest reported for DSSCs based on organic sensitizers. Copyright