160319-34-6

Basic information

• Product Name: 2,5-dibromo-3,4-diphenyl-1,1-di(propan-2-yl)silole
• Synonyms: 2,5-dibromo-3,4-diphenyl-1,1-di(propan-2-yl)silole
• CAS NO: 160319-34-6
• Molecular Weight: 476.326
• Mol File: 160319-34-6.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: 2,5-dibromo-3,4-diphenyl-1,1-di(propan-2-yl)silole(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-dibromo-3,4-diphenyl-1,1-di(propan-2-yl)silole(160319-34-6)
• EPA Substance Registry System: 2,5-dibromo-3,4-diphenyl-1,1-di(propan-2-yl)silole(160319-34-6)

Safety Data

• Hazardous Substances Data: 160319-34-6(Hazardous Substances Data)

Upstream product

• 171967-35-4 3,4-diphenyl-1,1-diisopropyl-2,5-dilithiosilole 

Relevant articles and documents

Synthesis of 1,1-Diisopropyl- or -Diphenyl -2,5-dibromo- or -bis(trimethylsilyl)-3,4-diphenyl-siloles and the Electrochemical Properties as Anode Materials for Lithium-Ion Battery

Intramolecular cyclization of 1,1-diisopropyl- or diphenyl-bis(phenylethynyl)-silanes (2a and 2b) followed by bromination or trimethylsilylation were carried out to yield 1,1-diisopropyl- or -diphenyl-3,4-diphenyl-2,5-dibromo-siloles (3a and 3b) and 1,1-d

Synthesis and electrochemical characteristics of oligo[{3,4-diphenyl-1,1-di(propan-2-yl)-2,5-silolene}-co-(diphenylsilylene)] for lithium-ion secondary battery anodes

The co-oligomerization of 2,5-dibromo-3,4-diphenyl-1,1-di(propan-2-yl)-silole (3) with dichlorodiphenylsilane was carried out using n-butyllithium at ?78°C to synthesize oligo[{3,4-diphenyl-1,1-di(propan-2-yl)-2,5-silolene}-co-(diphenylsilylene)] (5) as yellowish-white powder, with a mass-average molar mass of 561, polydispersity of 1.01, λabs,max of 260 and 279 nm, λex,max of 296 nm, λem,max of 391 nm, and thermal stability up to 125°C without any weight loss. The rate performance obtained with oligomer 5 was superior to that obtained with monomer 3. The discharge and charge capacities with 5 were 1234 and 1263 mAhg?1, respectively, with Coulombic efficiency of 97.7% at the 100th cycle. Nyquist plots suggested that the resistance decreases gradually with repeated cycling.

2,5-reactive substituent group-containing siloles, silole polycondensates and preparation thereof

2,5-Reactive substituent group-containing siloles of the following general formula are provided STR1 wherein R1 to R4 may be the same or different and independently represent a monovalent hydrocarbon group having from 1 to 12 carbon atoms or a hydrogen atom, and R5 and R6 may be the same or different and independently represent a group selected from monovalent hydrocarbon-substituted sulfur, selenium, silicon, germanium, tin and phosphorus, or a halogen atom. Polycondensates of the siloles and processes for preparing the siloles and polycondensates are described.