Sage-Tips

What is an Ambidentate ligand Ncert?

Ambidentate ligand is a type of ligand that has the ability to bind with the central atom via two different atoms which are not the same elements. For example, if nitrite ion binds with central metal ion via N-atom, then it is called ‘nitro’ ligand and when it binds with O-atom, it is called ‘nitrito’ ligand.

What are bidentate and Ambidentate ligands?

Bidentate ligands are molecules or anions that can bind to an atom via two coordinate covalent bonds. Ambidentate ligands are molecules or ions that have two donor atoms but are capable of binding with an atom via only one donor atom at a time.

Which pair is Ambidentate ligand?

CN- and NO-2 are ambidentate ligands.

Which of the following is an example of Ambidentate ligand?

Unlike polydentate ligands, ambidentate ligands can attach to the central atom in two places. A good example of this is thiocyanate, SCN−, which can attach at either the sulfur atom or the nitrogen atom.

What is the difference between Ambidentate ligand and chelating ligand?

– Chelating ligands are those which use its donor atoms (more than one) to form a coordinated Bond with the central metal atom to give a ring-like structure. An ambidentate ligand can donate lone pairs of electrons by more than one donor but only one at a time.

What is meant by Unidentate and Ambidentate ligands give two examples of each?

Unidentate: When the ligands can donate the pair of electrons from one atom, it is called unidentate ligands, e.g., NH3, H2O, CN– etc. Ambidendate: It is that unidentate ligand which can ligate through two different atoms present in it to central atom/ion giving two different coordination entity.

Is Ambidentate ligands same as bidentate ligands?

No, these are different. A bidentate ligand has two donor atoms which can donate electron pairs simultaneoulsy. An ambident ligand has also two donor atoms but only one can donate hte electron at a time.

Which is not an Ambidentate ligand?

Ligands which can ligate through either of two different atoms present in it are called ambidentate ligands. Examples of such ligands are the CN- , NO2- and SCN- ions. NH3 is not an ambidentate ligand.

What is hybridization of nico4?

Ni(CO)4 = Ni + 4CO The empty 4s and three 4p orbitals undergo sp3 hybridization and form bonds with CO ligands to give Ni(CO)4. Thus Ni(CO)4 is diamagnetic.

Do Ambidentate ligands form chelates?

But in the case of ambidentate ligands, only one of them can donate electrons at a time. Thus, they can’t form chelating compounds.

What is Unidentate and Bidentate?

If only one donor atom is present in its molecule which can coordinate then it is unidentate. For example, H2O, NH3. If the ligand contains two donor atoms placed in a way that a five or six membered ring is formed with the metal ion then it is called as bidentate.