Question

Bidentate ligands are:

• A. C${}_2$O${}_4^{2-}$ (oxalate)
• B. en (ethylenediamine)
• C. DMG (dimethyl glyoxime)
• D. Gly (glycine)

Answer 1

Answer: (A), (B), (C), (D)

Correct options: (A), (B), (C), (D)

Bidentate ligands: Bidentate ligands are those ligands that have two donor sites and can bind the central atom from two ends.
Option (A)

$C_2$O${}_4^{2-}$ (oxalate) is a bidentate ligand that has two donor oxygen atom which carries a negative charge.

Option (B)

en (ethylenediamine) is a neutral bidentate ligand that can bind to a metal atom through two nitrogen atoms.

Option (C)

DMG (dimethyl glyoxime) is a bidentate ligand that can bind to a metal atom through one nitrogen and one oxygen atom forming six-membered rings.

Option (D)

Gly (glycine) is a bidentate ligand that can bind to a metal atom through one nitrogen and one oxygen atom.