Question

Show how the glycinate ion (H₂N-CH₂-COO₂) can act as a bidentate ligand. (Draw a Lewis diagram if necessary.) Which atoms in the glycinate ion will bind to a metal ion?

Short answer

Glycinate ion acting as bidentate due to presence of two donar site and atoms in the glycinate ion that bind to metal ion are nitrogen and oxygen.

Step-by-step solution

ligand

Ligand are the atom/molecule donate their lone pair and get attached directly to the central metal ion by coordinate bond that result in formation of cordination compound.

Ligand glycinate

Ligand which has two donar atom is called abidentate ligand, glycinate act as the bidentate ligand as it has two donar site (lone pair on nitrogen and negative charge on oxygen) shown as follows:

Glycinate bidentate ligand

The atom that will bind to metal ion in glycinate bidentate ligand are:

• Nitrogen atom
• Oxygen atom