
Concept explainers
(a)
Interpretation:
For the given complex the orbital splitting diagram has to be drawn using spectrochemial series.
Concept introduction:
The element in the periodic table and count its position in the respective transition series. These elements are in Periods 5 and 6, so the general configuration is
Spectrochemical series: The list of ligands arranged in an ascending order of
Crystal field splitting: The energy gap between the splitting of d-orbitals of the metal ion in presence of ligands is known as the crystal field splitting
Splitting of five d-orbitals in an octahedral crystals field is as follows:
Figure 1
(a)

Explanation of Solution
Given,
Electron configuration of
Charge on
Electron configuration of
Six ligands indicate an octahedral arrangement. Using Hund’s rule, fill the lower energy
(b)
Interpretation:
For the given complex the orbital splitting diagram has to be drawn using spectrochemial series.
Concept introduction:
The element in the periodic table and count its position in the respective transition series. These elements are in Periods 5 and 6, so the general configuration is
Spectrochemical series: The list of ligands arranged in an ascending order of
Crystal field splitting: The energy gap between the splitting of d-orbitals of the metal ion in presence of ligands is known as the crystal field splitting
Splitting of five d-orbitals in an octahedral crystals field is as follows:
Figure 1
(b)

Explanation of Solution
Given,
Electron configuration of
Charge on
Electron configuration of
Four ligands and a
(c)
Interpretation:
For the given complex the orbital splitting diagram has to be drawn using spectrochemial series.
Concept introduction:
The element in the periodic table and count its position in the respective transition series. These elements are in Periods 5 and 6, so the general configuration is
Spectrochemical series: The list of ligands arranged in an ascending order of
Crystal field splitting: The energy gap between the splitting of d-orbitals of the metal ion in presence of ligands is known as the crystal field splitting
Splitting of five d-orbitals in an octahedral crystals field is as follows:
Figure 1
(c)

Explanation of Solution
Electron configuration of
Charge on
Electron configuration of
Six ligands indicate an octahedral arrangement. Use Hund’s rule to fill the orbitals.
Water – is a weak-field ligand, so the splitting energy, Δ, is not large enough to overcome the resistance to electron pairing. The electrons remain unpaired, and the complex is called high-spin.
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Chapter 23 Solutions
Chemistry: The Molecular Nature of Matter and Change - Standalone book
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