Ligand and Its types

 Ligand : 

ligand is atom or group of atom Which can donate electron pair .

Or species which can donate lone pair.

Types of ligand:

It has following types.

Monodentate ligand :

It is type of ligand which can donate one electron pair.

Example:Cl -, I- ,OH - ,NH3, CO

Bidentate ligand :

It is type of ligand which can donate two electron pairs.

Example:NH2NH2,sSulphate ion carbonate ion

Tridentate ligand :

It is type of ligand which can donate Three electron pairs..

Example:Diethylene triamine

Hexadentate ligand :

It is type of ligand which can donate six electron pairs.

Example:Ethylene diaminetetra acetate(EDTA).