2797-28-6

Basic information

• Product Name: LITHIUM TETRAKIS(PENTAFLUOROPHENYL)BORATE-ETHYL ETHER COMPLEX
• Synonyms: [LI(C6F5)4B] NOET2;LITHIUM TETRAKIS(PENTAFLUOROPHENYL)-BORATE DIETHYLETHER COMPLEX;LITHIUM TETRAKIS(PENTAFLUOROPHENYL)BORATE ETHERATE;LITHIUM TETRAKIS(PENTAFLUOROPHENYL)BORATE-ETHYL ETHER COMPLEX;LITHIUM TETRAKIS(PENTAFLUOROPHENYL)BORATE ETHYL ETHERATE;Lithium tetrakis(pentafluorophenyl)borate-diethylether complex (1:2);lithium:tetrakis(2,3,4,5,6-pentafluorophenyl)boranuide
• CAS NO: 2797-28-6
• Molecular Formula: C₂₄BF₂₀*Li
• Molecular Weight: 760.1
• Mol File: 2797-28-6.mol
• Article Data: 19

Chemical Properties

• Melting Point: 118-122 °C
• Appearance: /
• CAS DataBase Reference: LITHIUM TETRAKIS(PENTAFLUOROPHENYL)BORATE-ETHYL ETHER COMPLEX(CAS DataBase Reference)
• NIST Chemistry Reference: LITHIUM TETRAKIS(PENTAFLUOROPHENYL)BORATE-ETHYL ETHER COMPLEX(2797-28-6)
• EPA Substance Registry System: LITHIUM TETRAKIS(PENTAFLUOROPHENYL)BORATE-ETHYL ETHER COMPLEX(2797-28-6)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26
• RIDADR: 1325
• WGK Germany: 3
• F: 3-10
• TSCA: No
• Hazardous Substances Data: 2797-28-6(Hazardous Substances Data)

Usage

General Description

Lithium tetrakis(pentafluorophenyl)borate-ethyl ether complex is a complex chemical compound that consists of lithium cations and tetrakis(pentafluorophenyl)borate anions, which are chelated by ethyl ether molecules. This complex is often used as a source of lithium ions in organic and inorganic synthesis, due to its high solubility in non-aqueous solvents and its stability under a wide range of reaction conditions. It is also used as an electrolyte additive in lithium-ion batteries to improve their cycling performance and stability. Additionally, this complex has been studied for its potential applications in catalysis and as a coordination compound in organic chemistry.

InChI:InChI=1/C24BF20.Li/c26-5-1(6(27)14(35)21(42)13(5)34)25(2-7(28)15(36)22(43)16(37)8(2)29,3-9(30)17(38)23(44)18(39)10(3)31)4-11(32)19(40)24(45)20(41)12(4)33;/q-1;+1

Upstream product

• 1076-44-4 pentafluorophenyl lithium 
• 344-04-7 bromopentafluorobenzene 
• 363-72-4 Pentafluorobenzene 
• 10294-34-5 boron trichloride 
• 1109-15-5 tris(pentafluorophenyl)borate 
• 7647-14-5 sodium chloride 
• 109-72-8 n-butyllithium 
• 1460-02-2 1,3,5-Tri-tert-butylbenzene 
• 3975-77-7 1-bromo-2,4,6-tri-tert-butylbenzene 
• 35383-91-6 2,4,6-tri-tert-butylphenyllithium 
• 138-42-1 p-nitrobenzenesulfonic acid 
• 47221-31-8 dodecylbenzene-sulphonic acid 
• 368-88-7 4-fluorobenzenesulfonic acid 
• 142-96-1 dibutyl ether 

Downstream Products

• 1840-83-1 (tetraethyl ammonium) tetrakis-(pentafluoro phenyl) borate 
• 148418-38-6 {Ag(C₁₀H₂₀S₅)}⁽¹⁺⁾*{B(C₆F₅)4}^(1-)={Ag(C₁₀H₂₀S₅)}{B(C₆F₅)4} 
• 628737-43-9 [chlorobis([2-(dimethylamino)isopropyl]cyclopentadienyl)zirconium] tetrkis(pentafluorophenyl)borate 
• 136710-93-5 tetra-n-butylammonium tetrakis(pentafluorophenyl)borate 

Relevant articles and documents

N-Heterocyclic Iod(az)olium Salts – Potent Halogen-Bond Donors in Organocatalysis

This article describes the application of N-heterocyclic iod(az)olium salts (NHISs) as highly reactive organocatalysts. A variety of mono- and dicationic NHISs are described and utilized as potent XB-donors in halogen-bond catalysis. They were benchmarked in seven diverse test reactions in which the activation of carbon- and metal-chloride bonds as well as carbonyl and nitro groups was achieved. N-methylated dicationic NHISs rendered the highest reactivity in all investigated catalytic applications with reactivities even higher than all previously described monodentate XB-donors based on iodine(I) and (III) and the strong Lewis acid BF3.

Lewis Superacidic Catecholato Phosphonium Ions: Phosphorus-Ligand Cooperative C-H Bond Activation

A series of catecholato phosphonium ions, including the first stable bis(catecholato)-substituted derivatives, are isolated and fully characterized. The cations rank among the most potent literature-known Lewis acids on the Gutmann-Beckett and ion affinit

Vinyl Carbocations Generated under Basic Conditions and Their Intramolecular C-H Insertion Reactions

Here we report the surprising discovery that high-energy vinyl carbocations can be generated under strongly basic conditions, and that they engage in intramolecular sp3 C-H insertion reactions through the catalysis of weakly coordinating anion salts. This approach relies on the unconventional combination of lithium hexamethyldisilazide base and the commercially available catalyst, triphenylmethylium tetrakis(pentafluorophenyl)borate. These reagents form a catalytically active lithium species that enables the application of vinyl cation C-H insertion reactions to heteroatom-containing substrates.