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How to find the secondary valence in a coordination complex?

How to find the secondary valence in a coordination complex? 

Grade:12

2 Answers

dfdffdfddffd
41 Points
9 years ago

Dear student!

The secondary valence is equal to the coordination number and is fixed for a metal. Actually,the secondary valencies are non ionisable valencies. These are satisfied by neutral molecules or negative ions.The secondary valency is fixed for a metal and is equal to the co ordination number.

The coordination number of the central atom/ion is determined only by the number of sigma bonds formed by the ligand with the central atom/ion and this gives the secondary valency too.

For ex: for, PtCl2 .2NH3 the secondary valency is equal to the co ordination no. i.e. 4.

Utpal
15 Points
4 years ago
Dear students 
 
 
                   Basically werner a swiss  chemist give us two term ..
 
1) primary valence
2) secondary valence
Primary valence...it is normally ionisable.these are fully satisfied by negative ion..
Secondary valence...it is not ionisable and these are satisfied by neutral molecules and negative ion

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