Lewis Acids and Bases
Curved arrows start at ___________ and point toward_____________
Curved arrows start at the lone pair of the base and point toward the acid
Structural features of a Lewis acid
Must have an orbital that can accept electrons partially positive or positive charge
Structural features of a Lewis base
Must have lone pair of electrons
BF3 is a Lewis __________
acid
transition metals tend to be Lewis ___________
acids
NH3 is a Lewis ____________
base
Lewis acid
electron pair acceptor
Lewis base
electron pair donor
Alkanes are Lewis ____________
neither acid or base there is no lone pair or empty orbital
curved arrow
show how electrons move in reactions
Lewis acid-base reaction
the formation of a bond between an electron-pair donor and an electron-pair acceptor