
Is a lewis base?
Answer
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Hint :Lewis acids and bases are electron-pair acceptors and electron-pair donors, respectively, according to the Lewis theory of acid-base reactions. Lewis acids are chemical compounds with empty orbitals that can accept electron pairs from Lewis bases. Lewis bases are atomic or molecular chemical species with a highly localised HOMO (Highest Occupied Molecular Orbital).
Complete Step By Step Answer:
Since the aluminium atom has an open valence shell, aluminium chloride ( ) is a Lewis acid. Lewis acid (e.g., , ) is an atom, ion, or molecule with an incomplete electron octet (e.g., , ). Lewis bases donate a pair of electrons. A Lewis base is an atom, ion, or molecule with a single electron pair.
Aluminium chloride is a chemical compound with the formula . In comparison to the white, pure compound, it takes on a yellow hue when contaminated with iron chloride. It's used as a Lewis base in a variety of chemical reactions, with anhydrous aluminium trichloride being the most common Lewis acid.
Depending on the temperature and state, takes on one of three structures (solid, liquid, gas). Solid is layered cubic close packed layers in a sheet-like structure. When melted, aluminium trichloride exists as the dimer , which contains tetracoordinate aluminium.
Note :
In the Friedel-Crafts alkylation process, Lewis acids play an important role as a catalyst in the Friedel-Crafts reaction – accepts a lone pair of electrons from the chloride ion, resulting in the formation of –. This also results in the formation of the highly electrophilic carbonium ion, which functions as a powerful Lewis acid. The following is an example of a chemical reaction.
Lewis acids are commonly used in organic chemistry to promote cationic or pseudo-cationic chemical reactions.
Complete Step By Step Answer:
Since the aluminium atom has an open valence shell, aluminium chloride (
Aluminium chloride is a chemical compound with the formula
Depending on the temperature and state,
Note :
In the Friedel-Crafts alkylation process, Lewis acids play an important role as a catalyst in the Friedel-Crafts reaction –
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