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Sigma-Aldrich

Lithium tetrakis(pentafluorophenyl)borate ethyl etherate

Synonym(s):

Tetrakis(pentafluorophenyl)boron lithium ethyl etherate

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About This Item

Empirical Formula (Hill Notation):
C24BF20Li · 2.5C4H10O
CAS Number:
371162-53-7
Molecular Weight:
871.28
MDL number:
MFCD01861289
UNSPSC Code:
12161600
PubChem Substance ID:
57647634
NACRES:
NA.22
Pricing and availability is not currently available.

reaction suitability

core: boron
reagent type: catalyst

Quality Level

100

mp

117-122 °C

SMILES string

[Li+].CCOCC.Fc1c(F)c(F)c(c(F)c1F)[B-](c2c(F)c(F)c(F)c(F)c2F)(c3c(F)c(F)c(F)c(F)c3F)c4c(F)c(F)c(F)c(F)c4F

InChI

1S/C24BF20.C4H10O.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;1-3-5-4-2;/h;3-4H2,1-2H3;/q-1;;+1

InChI key

KPLZKJQZPFREPG-UHFFFAOYSA-N

Application

Lithium tetrakis(pentafluorophenyl)borate ethyl etherate can be used as:
  • A coordinating counter anion in electrochemical reactions along with transition metal catalysts to enhance their acidity or solubility.[1][2]
  • A catalyst in the Baeyer-Villiger oxidation of cycloalkanones to obtain lactones in the presence of aqueous hydrogen peroxide and oxalic acid.[2]
  • An activator in the synthesis of poly(norbornene ester)s.[3]

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Salt for the generation of cationic transition metal complexes[4][5]

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG9391
BCCC9659
BCBS5109V
BCBP3737V
BCBM1596V

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High oxidation-state (formally d(0)) tungsten silylene complexes via double Si-H bond activation.
B V Mork et al.
Journal of the American Chemical Society, 123(39), 9702-9703 (2001-09-27)
Baeyer-Villiger oxidation and oxidative cascade reactions with aqueous hydrogen peroxide catalyzed by lipophilic Li [B (C6F5) 4] and Ca [B (C6F5) 4] 2
Uyanik M, et al.
Angewandte Chemie (International Edition in English), 124(36), 9227-9230 (2012)
H. Shen, R.F. Jordan
Organometallics, 22, 1878-1878 (2003)
Synthesis of poly (norbornene ester) s by using ($\eta$ 3-substituted allyl) palladium (NHC) complex as catalyst and investigation of their chemical structure-Glass transition temperature-Refractive index relationships
Lee DH, et al.
Fibers and Polymers, 18(8), 1438-1444 (2017)
Kateryna Trofymchuk et al.
Nature photonics, 11(10), 657-663 (2017-10-07)
Here, we explore the enhancement of single molecule emission by polymeric nano-antenna that can harvest energy from thousands of donor dyes to a single acceptor. In this nano-antenna, the cationic dyes are brought together in very close proximity using bulky
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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