264281-45-0

Basic information

• Product Name: 2,8-Dibromo-6,12-dihydro-6,6,12,12-tetraoctyl-indeno[1,2-b]fluorene
• Synonyms: 2,8-Dibromo-6,12-dihydro-6,6,12,12-tetraoctyl-indeno[1,2-b]fluorene ;2,8-Dibromo-6,12-dihydro-6,6,12,12-tetraoctyl-indeno[1,2-b]fluor
• CAS NO: 264281-45-0
• Molecular Formula: C52H76Br2
• Molecular Weight: 860.96784
• Product Categories: Indenofluorene
• Mol File: 264281-45-0.mol
• Article Data: 1

Chemical Properties

• Melting Point: 84-88°C
• Boiling Point: 802.3±65.0 °C(Predicted)
• Appearance: /
• Density: 1.099±0.06 g/cm3(Predicted)
• CAS DataBase Reference: 2,8-Dibromo-6,12-dihydro-6,6,12,12-tetraoctyl-indeno[1,2-b]fluorene(CAS DataBase Reference)
• NIST Chemistry Reference: 2,8-Dibromo-6,12-dihydro-6,6,12,12-tetraoctyl-indeno[1,2-b]fluorene(264281-45-0)
• EPA Substance Registry System: 2,8-Dibromo-6,12-dihydro-6,6,12,12-tetraoctyl-indeno[1,2-b]fluorene(264281-45-0)

Safety Data

• WGK Germany: 3
• Hazardous Substances Data: 264281-45-0(Hazardous Substances Data)

Usage

General Description

2,8-Dibromo-6,12-dihydro-6,6,12,12-tetraoctyl-indeno[1,2-b]fluorene is a complex organic compound with the molecular formula C66H88Br2. It is a member of the fluorene family and is characterized by its highly branched octyl groups. 2,8-Dibromo-6,12-dihydro-6,6,12,12-tetraoctyl-indeno[1,2-b]fluorene is often used as a precursor for the synthesis of various organic molecules and polymers, particularly in the field of organic electronics and materials science. Its unique structure and properties make it a valuable building block for designing and developing new materials with specific functionalities and applications, such as organic semiconductors and photoactive materials for solar cells. Additionally, the multiple bromine substituents on the molecule provide opportunities for further functionalization and modification to tailor its properties for specific uses.

Upstream product

• 264281-52-9 6,6',12,12'-tetraoctylindeno[1,2-b]fluorene 

Relevant articles and documents

Synthesis and characterization of indeno[1,2-b]fluorene-based low bandgap copolymers for photovoltaic cells

Two types of indenofluorene-based low bandgap conjugated polymers, poly(6,6′,12,12′-tetraoctylindeno[1,2-b]fluorene-co-4, 7-bis(2-thienyl)-2,1,3-benzothiadiazole) (PIF-DBT) and poly(6,6′,12, 12′-tetraoctylindeno[1,2-b]fluorene-co-5,7-dithien-2-yl-thieno[3,4-b] pyrazine) (PIF-DTP), were synthesized and characterized for use in plastic solar cells. The optical, electrochemical, charge carrier mobility, morphological and photovoltaic characteristics were investigated. The number-average molecular weights of the polymers measured by gel permeation chromatography ranged from 19000 to 27000 g mol-1. The polymers were fairly soluble in common organic solvents and formed optical-quality films by spin casting. Photophysical studies revealed a low bandgap of ～1.9 eV for PIF-DBT and ～1.6 eV for PIF-DTP, respectively, which could harvest the broad solar spectrum covering from 300 nm to 650 nm (PIF-DBT), and from 300 nm to 800 nm (PIF-DTP) in film. An electrochemical study confirmed the desirable HOMO/LUMO levels of the copolymers, which enable efficient electron transfer and a high open circuit voltage when blending them with fullerene derivatives. The field effect mobility measurements showed a hole mobility of 10-5～10-3 cm2 V-1 s-1 for the copolymers. The film surface morphology was also studied by atomic force microscopy. Among the polyindenofluorene copolymers, PIF-DBT50 (containing 50 mol% DBT) showed the best photovoltaic performance with an open circuit voltage of 0.77 V, a short circuit current of 5.50 mA cm-2 and a power conversion efficiency of 1.70% when the polymers were blended with PC71BM, under air mass 1.5 global (AM 1.5G, 100 mW cm-2) illumination conditions. The Royal Society of Chemistry 2010.