The complex which absorb the longer wavelength to be predicted . Concept Introduction: Spectrochemical series: The list of ligands arranged in an ascending order of (Δ) (the splitting of d-orbitals in presence of various ligands). → I - < Br - < SCN - < Cl - < S 2- < F - < OH - < O 2- < H 2 O < NCS - < edta 4- < NH 3 < en < NO 2- < CN - < CO weak-field increasing(Δ) strong-field ligands ligands 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 (Δ) . The magnitude of (Δ) is depends on the nature of metal ions and the ligands. To Identify: The complex which absorb the longer wavelength to be predicted.
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 (Δ). The magnitude of (Δ) is depends on the nature of metal ions and the ligands.
To Identify: The complex which absorb the longer wavelength to be predicted.
a)
Expert Solution
Answer to Problem 23.37QP
The ligand H2O is a weaker field ligand which absorbs the longer wavelength.
Explanation of Solution
Predict the complex which absorbs the longer wavelength.
In the given complex ions, the ligand H2O is a weak field ligand; also the crystal field splitting is less than the ligand NH3 which requires less energy (long wavelength) to promote the electrons from the lower energy level. Thus, the complex ion [Co(H2O)6]2+ absorbs the longer wavelength.
b)
Interpretation Introduction
Interpretation: The complex which absorb the longer wavelength to be predicted.
Concept Introduction:
Spectrochemical series: The list of ligands arranged in an ascending order of (Δ)(the splitting of d-orbitals in presence of various ligands).
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 (Δ). The magnitude of (Δ) is depends on the nature of metal ions and the ligands.
To Identify: The complex which absorb the longer wavelength to be predicted.
b)
Expert Solution
Answer to Problem 23.37QP
The ligand F- is a weaker field ligand which absorbs the longer wavelength.
Explanation of Solution
Predict the complex which absorbs the longer wavelength.
In the given complex ions, the ligand F- is a weak field ligand; also the crystal field splitting is less than the ligand CN− which requires less energy (long wavelength) to promote the electrons from the lower energy level. Thus, the complex ion [FeF6]3- absorbs the longer wavelength.
c)
Interpretation Introduction
Interpretation: The complex which absorb the longer wavelength to be predicted.
Concept Introduction:
Spectrochemical series: The list of ligands arranged in an ascending order of (Δ)(the splitting of d-orbitals in presence of various ligands).
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 (Δ). The magnitude of (Δ) is depends on the nature of metal ions and the ligands.
To Identify: The complex which absorb the longer wavelength to be predicted.
c)
Expert Solution
Answer to Problem 23.37QP
The ligand Cl- is a weaker field ligand which absorbs the longer wavelength.
Explanation of Solution
Predict the complex which absorbs the longer wavelength.
In the given complex ions, the ligand Cl− is a weak field ligand; also the crystal field splitting is less than the ligand NH3 which requires less energy (long wavelength) to promote the electrons from the lower energy level. Thus, the complex ion [CuCl4]2- absorbs the longer wavelength.
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