Boron Trifluoride and Ammonia (Lewis Acid-Base)

BF3 + NH3 → BF3·NH3

Visão geral

Boron trifluoride, a classic Lewis acid with an empty p-orbital on boron, accepts an electron pair from ammonia's lone pair to form a dative bond. No proton transfer occurs, making this purely a Lewis acid-base reaction. The product is a stable adduct where boron achieves an octet.

Participantes

Papel Substância Coeficiente Estado
Reagente Boron B 1 (g)
Reagente Ammonia NH₃ 1 (g)

Exemplo do cotidiano

BF₃ adducts are sold commercially as stable reagents that release BF₃ for use as catalysts in organic synthesis.

Importância industrial

O eterato de BF₃ e outros complexos de BF₃ são amplamente utilizados como catalisadores ácidos de Lewis em polimerização, reações de Friedel-Crafts e no refino de petróleo.

Propriedades

Tipo
Acid-Base
Reversível
Sim
Energia
Exotérmico
ΔH
-130,0 kJ/mol

Reações relacionadas

Hydrochloric Acid and Barium Hydroxide Acetic Acid and Sodium Acetate Buffer System Acetic Acid Dissociation in Water Ammonia and Hydrochloric Acid Ascorbic Acid and Sodium Hydroxide Barium Hydroxide and Ammonium Thiocyanate (Endothermic) Carbonic Acid and Sodium Hydroxide Aluminum Hydroxide as Amphoteric Acid with NaOH Aluminum Chloride and Chloride Ion (Lewis Acid-Base) Formic Acid and Sodium Hydroxide

Frequently Asked Questions

What is the equation for Boron Trifluoride and Ammonia (Lewis Acid-Base)?
The balanced equation is: BF₃ + NH₃ → BF₃·NH₃.
What type of reaction is Boron Trifluoride and Ammonia (Lewis Acid-Base)?
Boron Trifluoride and Ammonia (Lewis Acid-Base) is a acid-base reaction. It is reversible under certain conditions.
Is Boron Trifluoride and Ammonia (Lewis Acid-Base) exothermic or endothermic?
Boron Trifluoride and Ammonia (Lewis Acid-Base) is exothermic (releases energy). The enthalpy change (ΔH) is -130.0 kJ/mol.