• When a particular
metal ion achieves it highest
known coordination number, it is said that coordination saturation has occurred.
eg. for Co
& Fe 6 is
the no. for saturation
• A metal is coordinatively saturated when it achieves
its maximum coordination number.
• All the first
row transition metals have 6 as
the highest known
coordination number.
• In these
lectures, we are concerned chiefly with complexes which have a coordination of four or six.