Potassium tetrakis(pentafluorophenyl)borate（CAS# 89171-23-3)

Introduction

Potassium tetrakis(pentafluorophenyl)borate is an inorganic compound with the chemical formula K[B(C6F5)4]. The following is a description of the properties, uses, preparation and safety information of the compound:

Nature:

- Potassium tetrakis(pentafluorophenyl)borate is a white crystal, soluble in many organic solvents.

-It will decompose at high temperature to produce potassium fluoride and potassium tris (pentafluorophenyl) borate.

-It has high thermal stability and oxidation stability.

Use:

- Potassium tetrakis(pentafluorophenyl)borate is an important ligand compound, often used as a catalyst in organic synthesis.

-It can be used for the synthesis of halides, etherification reactions, polymerization reactions, etc.

-It also has applications in the electronic field, such as as a catalyst in the synthesis of organic optoelectronic materials.

Preparation Method:

-Usually obtained by reacting tetrakis (pentafluorophenyl) boric acid with potassium hydroxide.

-specific preparation method can refer to the relevant chemical literature or patent.

Safety Information:

- Potassium tetrakis(pentafluorophenyl)borate will decompose to produce hydrogen fluoride in a humid environment, which is corrosive to a certain extent.

-Wear appropriate protective equipment during operation to avoid contact with skin and inhalation of gas.

-should be away from fire and high temperature environment, stored in a dry, ventilated place.

Please note that for specific chemical use and handling, it is recommended to operate in accordance with the company's safety regulations and operating guidelines.

Potassium tetrakis(pentafluorophenyl)borate (K[B(C₆F₅)₄], CAS 89171-23-3) is a highly lipophilic, non-coordinating salt. Its key feature is the bulky, electron-deficient tetrakis(pentafluorophenyl)borate anion, which has an exceptionally low coordinating ability. This property makes it invaluable for stabilizing highly reactive, electrophilic cationic species without interfering in catalytic cycles.

In organometallic chemistry and catalysis, it serves as a crucial co-catalyst, particularly in metallocene catalyst systems for olefin polymerization. It activates metallocene dichloride precursors by abstracting a chloride ligand to generate the active cationic species. Additionally, it catalyzes carbon-carbon bond-forming reactions like Suzuki-Miyaura couplings and hydroamination reactions.

In electrochemistry, its exceptionally low ion association constant and wide anodic window make it the preferred supporting electrolyte for techniques like cyclic voltammetry (CV) in organic solvents. It prevents the nucleophilic interference and skewed data caused by common electrolytes. In material science, its ability to form stable complexes with metal ions makes it a precursor for synthesizing new materials, such as luminescent materials.

As a versatile biochemical reagent and pharmaceutical intermediate，it also plays a role in organic synthesis for reactions including halide synthesis, etherification, and polymerization. Xinchem offers custom synthesis and contract manufacturing of this high-purity compound (≥95% to >98%) with flexible scaling from R&D to commercial tons. Contact us for a competitive quote and reliable global supply.