Potassium 2,3-difluorophenyltrifluoroborate

Description

Potassium 2,3-difluorophenyltrifluoroborate is a potassium organotrifluoroborate – the tetracoordinate, air-stable counterpart of the corresponding boronic acid, built on a benzene core and two lateral fluorines on adjacent ring positions.

The practical argument for a trifluoroborate is stoichiometric honesty. Boronic acids equilibrate with their cyclic anhydrides (boroxines) and carry variable water, so a weighed sample is of uncertain composition. The trifluoroborate is a defined crystalline salt: it weighs what it is, tolerates air and moisture on the bench, and releases the active boron species only under the hydrolytic conditions of the reaction itself.

Key data

• Molecular formula: C6H3BF5K
• Molecular weight: 219.99 g/mol
• Category: Potassium Trifluoroborates

What the substitution pattern does

Two fluorines on adjacent ring positions point their combined dipole across the molecular long axis, not along it. Lateral 2,3-difluorination is the standard route to negative dielectric anisotropy – the property required by vertically aligned display modes, where the field must reorient molecules that start out perpendicular to the substrate.

Typical applications

• formulation of negative-dielectric-anisotropy mixtures for VA display modes
• automated and parallel synthesis, where accurate solid dispensing matters
• preparation of fluorinated biphenyls for display-grade liquid crystal blends
• Suzuki-Miyaura coupling where a weighable, non-hygroscopic boron source is required
• multi-step sequences in which the boron handle must survive earlier steps untouched

Ordering

This compound is supplied to order. Pricing depends on quantity and on the specification you need, so it is quoted rather than listed – send an enquiry stating the quantity and any purity or analytical requirement, and you will receive a written quotation.

Handling and documentation

Supplied for laboratory and industrial use by trained personnel only. Not for use as a medicine, food, cosmetic or biocide, and not for administration to humans or animals. Safety documentation is issued with the order; this page is not a source of hazard information.