L1
/
2
CH1012
METAL-LIGAND BONDING
In the above rxn NH
3
a
Lewis base
makes
available an electron pair
and BCl
3
a
Lewis
acid
accepts a share in the electron pair
to
form a
coordinate-covalent bond.
Such
bonds are often represented by arrows and
are also called
dative bonds
.
THE NATURE OF THE METAL-LIGAND BOND