question_answer

Which of the following represents hexadentate ligand?

A)  2,2-bipyridyl   

B)  DMG

C)  Ethylenediamine

D)  None of these

Correct Answer: D

Solution :

Key Idea: Hexadentate ligand donates 6 pair of electrons to central atom. [a] 2,2-dipyridyl-bidentate ligand [b] DMG-bidentate ligand                 \[\begin{align}   & C{{H}_{3}}-C=N-O\xrightarrow{{}} \\  & C{{H}_{3}}-\overset{|}{\mathop{C}}\,=\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\mathop{N}}\,\xrightarrow{{}} \\ \end{align}\]                 [c] Ethylenediamine-pentadentate ligand \[\therefore \] None of the given ligand is hexadentate ligand.