123168-21-8

Basic information

• Product Name: bis-(pentafluoro phenyl) fluoro borane
• Synonyms: bis-(pentafluoro phenyl) fluoro borane
• CAS NO: 123168-21-8
• Molecular Weight: 363.925
• Mol File: 123168-21-8.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: bis-(pentafluoro phenyl) fluoro borane(CAS DataBase Reference)
• NIST Chemistry Reference: bis-(pentafluoro phenyl) fluoro borane(123168-21-8)
• EPA Substance Registry System: bis-(pentafluoro phenyl) fluoro borane(123168-21-8)

Safety Data

• Hazardous Substances Data: 123168-21-8(Hazardous Substances Data)

Upstream product

• 344-04-7 bromopentafluorobenzene 
• 123168-24-1 {acetonitrile(pentafluorphenyl)xenon(II)}{(C₆F₅)2BF₂} 
• 7637-07-2 boron trifluoride 
• 7784-36-3 arsenic pentafluoride 
• 830-49-9 difluoro (pentafluorophenyl)borane 
• 879-05-0 2,3,4,5,6-pentafluorophenylmagnesium bromide 
• 109-63-7 trifluoroborane diethyl ether 
• 7446-70-0 aluminum (III) chloride 
• 10294-34-5 boron trichloride 
• 592-50-7 1-fluoropentane 
• 165612-94-2 bis(pentafluorophenyl)borohydride 
• 768-92-3 1-adamantyl fluoride 
• 1109-15-5 tris(pentafluorophenyl)borate 
• 123168-25-2 (C₆F₅Xe)⁽¹⁺⁾*{(C₆F₅)2BF₂}^(1-) = (C₆F₅Xe){(C₆F₅)2BF₂} 

Downstream Products

• 1232366-70-9 C₂₃H₈BF₁₀N 
• 1144521-93-6 bis(pentafluorophenyl)(4-nonafluorobiphenyl)boron acetonitrile acetonitrile solvate 

Relevant articles and documents

Synthesis of Fluorine-Containing Aryl(halo)boranes from Potassium Aryl(fluoro)borates

Fluorine-containing aryldihalogenoboranes have been obtained by the reaction of boron and aluminum chlorides and bromides with potassium aryltrifluoroborates K[ArBF3] under mild conditions. In a similar way, bis(pentafluorophenyl)halogenoboranes have been synthesized by the reaction with K[(C6F5)2BF2]. The reaction of K[C6F5BF3] with AlBr3 affords a mixture of C6F5BF2 and C6F5BCl2 due to fast conversion of AlBr3 to AlBrCl2. The inductive and resonance parameters of BCl2 and BBr2 groups were calculated.

Synthesis of the most intensely fluorescent azobenzene by utilizing the B-N interaction

A boron-substituted azobenzene, (E)-[2-(4-methoxyphenylazo)phenyl] bis(pentafluorophenyl)borane, presented the most intense fluorescence among the azobenzene derivatives. The Royal Society of Chemistry.

Synthesis of cyclopentadienyl-, indenyl-, and fluorenylbis(pentafluorophenyl)boranes as ligands in titanium and zirconium half-sand wich complexes. The crystal structures of C13H9B(C6F5) 2·t-BuNH2, C13H8SiMe3B(C6F5) 2, and {η5-C5H

Bis(pentafluorophenyl)boron fluoride (C6F5)2BF·OEt2 (1), readily accessible from BF3·OEt2 and 2 equiv of C6F5MgBr, reacts with fluorenyllithium to give (Flu)B(C6F5)2 (4), while the reaction with indenyllithium leads to the regioisomers 1- and 2-IndB(C6F5)2 5 and 6, which are separated by fractional crystallization. 4 and 5 form crystalline adducts with tert-butylamine. The trimethylsilyl derivatives Flu(SiMe3)B(C6F5)2 (9) and Ind(SiMe3)B(C6F5)2 (10) are similarly prepared. Heating (C6F5)2BF·OEt2 leads to ether cleavage and formation of (C6F5)2BOEt. Treatment of 5 and 6 with Zr(NMe2)4 at room temperature gives indenylzirconium amido half-sandwich complexes; however, the reaction is accompanied by the unexpected exchange of one boron-C6F5 substituent by NMe2, to form 1- and 2-{C9H6B-(C6F5)(NMe 2)}Zr(NMe2)3. Reaction with SiClMe3 affords the trichlorides 1- and 2-{C9H6B-(C6F5)(NMe 2)}ZrCl3. The NMe2 substituent reduces the Lewis acidity of boron, so that donor ligands such as THF or DME coordinate exclusively to zirconium. Whereas 9 and 10 fail to react with group 4 metal chlorides, the cyclopentadienylborane C5H4(SiMe3)B(C6F5) 2 undergoes smooth dehalosilylation with TiCl4 to give {C5H4B(C6F5)2}TiCl 3. Both 2-{C9H6B-(C6F5)(NMe 2)}ZrCl3 and {C5H4B(C6F5)2}TiCl 3 in the presence of low concentrations of AlEt3 are active ethene polymerization catalysts, while under comparable conditions mixtures of AlEt3 and either IndZrCl3 or CpTiCl3 are inactive. The molecular structures of (Flu)B-(C6F5)2·NH2CMe 3, Flu(SiMe3)B(C6F5)2, and {C5H4B(C6F5)2}TiCl 3 have been determined by X-ray diffraction.