2. Explain the following observations: (a) Co(III) forms strong bonds to O- and N-donor ligands, moderately strong bonds to P-donor ligand, and weak bonds to As-donor ligands. (b) EDTA4 forms more stable complexes with trivalent first-row transition metals (M3+) than it does with the corresponding divalent metal (M²+) of each (e.g. Cr²+ vs Cr3+). EDTA is a common ligand which bonds a metal center through four oxygen and two nitrogen atoms in an octahedral geometry (Figure 1). Figure 1. EDTA binds in an octahedral geometry

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter8: Bonding In Transition Metal Compounds And Coordination Complexes
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2. Explain the following observations:
(a) Co(III) forms strong bonds to O- and N-donor ligands, moderately
strong bonds to P-donor ligand, and weak bonds to As-donor
ligands.
(b) EDTA4 forms more stable complexes with trivalent first-row
transition metals (M3+) than it does with the corresponding divalent
metal (M²+) of each (e.g. Cr²+ vs Cr3+). EDTA is a common
ligand which bonds a metal center through four oxygen and two
nitrogen atoms in an octahedral geometry (Figure 1).
Figure 1. EDTA binds in
an octahedral geometry
Transcribed Image Text:2. Explain the following observations: (a) Co(III) forms strong bonds to O- and N-donor ligands, moderately strong bonds to P-donor ligand, and weak bonds to As-donor ligands. (b) EDTA4 forms more stable complexes with trivalent first-row transition metals (M3+) than it does with the corresponding divalent metal (M²+) of each (e.g. Cr²+ vs Cr3+). EDTA is a common ligand which bonds a metal center through four oxygen and two nitrogen atoms in an octahedral geometry (Figure 1). Figure 1. EDTA binds in an octahedral geometry
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