Advertisements
Advertisements
Questions
What is the difference between a weak field ligand and a strong field ligand?
Explain the difference between a weak field ligand and a strong field ligand.
Write the difference between a strong field ligand and a weak field ligand.
Advertisements
Solution
| S.No. | Weak Field Ligand | Strong Field Ligand |
| 1. | A ligand that produces a small splitting of the d-orbitals in the central metal ion. | A ligand that produces a large splitting of the d-orbitals in the central metal ion. |
| 2. | These are the ligands used in octahedral complexes in which the crystal field stabilization energy Δo is less than the pairing energy (P) in a single orbital. | These are the ligands used in octahedral complexes in which the crystal field stabilization energy Δo is greater than the pairing energy (P). |
| 3. | Complexes formed by these ligands are also known as high-spin complexes. | Complexes formed by these ligands are also known as low-spin complexes |
| 4. | The complexes formed are generally paramagnetic. | The complexes formed are mostly diamagnetic or relatively less paramagnetic. |
| 5. | Examples of weak field ligands include I−, Br−, Cl−, and H2O. | Examples of strong field ligands include NH3, CN−, Co. |
APPEARS IN
RELATED QUESTIONS
On the basis of crystal field theory, write the electronic configuration for d4 ion if Δ0 > P.
How are the following conversions carried out?
Benzoic acid into metanitrobenzoic acid.
Draw the structures of the following :
(1) XeF6
(2) IF7
Complete and balance the following reactions:
\[\ce{P4 + H2SO4 ->}\] ______ + ______ + ______
The CFSE for octahedral \[\ce{[CoCl6]^{4-}}\] is 18,000 cm–1. The CFSE for tetrahedral \[\ce{[CoCl4]^{2-}}\] will be ______.
On the basis of crystal field theory explain why Co(III) forms paramagnetic octahedral complex with weak field ligands whereas it forms diamagnetic octahedral complex with strong field ligands.
Give the electronic configuration of the following complexes on the basis of Crystal Field Splitting theory.
\[\ce{[CoF6]^{3-}, [Fe(CN)6]^{4-} and [Cu(NH3)6]^{2+}}\].
Arrange following complex ions in increasing order of crystal field splitting energy (∆O):
\[\ce{[Cr(Cl)6]^{3-}, [Cr(CN)6]^{3-}, [Cr(NH3)6]^{3+}}\].
\[\ce{CuSO4 . 5H2O}\] is blue in colour while \[\ce{CuSO4}\] is colourless. Why?
Why are different colours observed in octahedral and tetrahedral complexes for the same metal and same ligands?
Crystal field stabilising energy for high spind4 octahedral complex is:-
The magnitude of CFSE depends upon ______
What is the spectrochemical series?
On the basis of Crystal Field theory, write the electronic configuration for the d5 ion with a strong field ligand for which Δ0 > P.
On the basis of crystal field theory, write the electronic configuration for the d5 ion with a weak ligand for which Δ0 < P.
On the basis of Crystal Field Theory, write the electronic configuration of d4 ion if Δ0 > P.
The value of the spin only magnetic moment for one of the following configurations is 2.84 BM. The correct one is:
