Lewis Acid Base Theory Lewis Acid (electron pair acceptor) Has an empty orbital and can accept an e pair e.g. BF3, H Lewis Base(electron pair donor) Has an e-pair and can donate(to a Lewis acid) e.g. NH3, Cl- Comprises the Bronsted-Lowey definition A Bronsted-Lowey acid/base is a Lewis acid/base; A Lewis acid/base may not be a Bronsted-Lowey acid/baseLewis Acid & Base Theory z Lewis Acid ( p p) electron pair acce ptor ) „ Has an empty orbital and can accept an e- pair „ e.g. BF 3, H + , z Lewis Base (electron pair donor) Lewis Base (electron pair donor) „ Has an e- pair and can donate (to a Lewis Acid) „ e.g. NH 3, Cl-, z Comprises the Brønsted Comprises the Brønsted -Lowey definition Lowey definition „ A Brønsted-Lowey acid/base is a Lewis acid/base; „ A Lewis acid/base may not be a Brønsted-Lowey acid/base 7