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Questions and Answers
The complex compound shown in the example exhibits linkage isomerism.
The complex compound shown in the example exhibits linkage isomerism.
False
The complex compound has a red color and is easily dissociated with acid.
The complex compound has a red color and is easily dissociated with acid.
True
The complex compound has a coordination sphere that only involves the cation.
The complex compound has a coordination sphere that only involves the cation.
False
Coordination isomerism occurs when the cation and anion of a complex compound exchange ligands.
Coordination isomerism occurs when the cation and anion of a complex compound exchange ligands.
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The complex compound has a yellow color and is not easily dissociated with acid.
The complex compound has a yellow color and is not easily dissociated with acid.
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In the complex [FeIII(CN)6]3-, the oxidation state of the central metal ion is II.
In the complex [FeIII(CN)6]3-, the oxidation state of the central metal ion is II.
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The coordination number of [FeIII(CN)6]3- is 6.
The coordination number of [FeIII(CN)6]3- is 6.
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The ligand in the complex [FeIII(CN)6]3- is a neutral molecule.
The ligand in the complex [FeIII(CN)6]3- is a neutral molecule.
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The charge of the complex [FeIII(CN)6]3- is +3.
The charge of the complex [FeIII(CN)6]3- is +3.
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In the complex [FeIII(CN)6]3-, the central metal ion forms a bond with each CN- ligand through a sigma bond.
In the complex [FeIII(CN)6]3-, the central metal ion forms a bond with each CN- ligand through a sigma bond.
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In Ma2b type complexes, 'a' and 'b' are bidentate ligands.
In Ma2b type complexes, 'a' and 'b' are bidentate ligands.
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Cis and Trans forms are easily separated by different physical means.
Cis and Trans forms are easily separated by different physical means.
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In [M(AB)2]n type complexes, 'AB' represents a symmetric bidentate ligand.
In [M(AB)2]n type complexes, 'AB' represents a symmetric bidentate ligand.
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M in Ma2b type complexes represents a monodentate ligand.
M in Ma2b type complexes represents a monodentate ligand.
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Cis and Trans forms of Ma2b type complexes have the same structure.
Cis and Trans forms of Ma2b type complexes have the same structure.
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Ionization isomerism is a type of isomerism where the same empirical formula gives different crystalline forms.
Ionization isomerism is a type of isomerism where the same empirical formula gives different crystalline forms.
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In the complex [CoIII(NH3)5 Br] SO4, the sulphate ion is a part of the coordination sphere.
In the complex [CoIII(NH3)5 Br] SO4, the sulphate ion is a part of the coordination sphere.
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All the chlorine atoms in the complex [CrIII(H2O)6 ] Cl3 are precipitated with AgNO3.
All the chlorine atoms in the complex [CrIII(H2O)6 ] Cl3 are precipitated with AgNO3.
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Ligand isomerism is a type of isomerism where the same ligand can coordinate with the central metal ion through different atoms.
Ligand isomerism is a type of isomerism where the same ligand can coordinate with the central metal ion through different atoms.
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The complex [Co(en)2 (C6 H 4CH 3 NH 2 )]Cl3 exhibits linkage isomerism.
The complex [Co(en)2 (C6 H 4CH 3 NH 2 )]Cl3 exhibits linkage isomerism.
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Hydrate isomerism is a type of isomerism where the same empirical formula gives different ions in solution or ionization.
Hydrate isomerism is a type of isomerism where the same empirical formula gives different ions in solution or ionization.
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The ligand field affects all five d-orbitals in the same way, resulting in a higher energy level.
The ligand field affects all five d-orbitals in the same way, resulting in a higher energy level.
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The d-orbitals in the central ion remain degenerate when the ligands are arranged in an octahedral way.
The d-orbitals in the central ion remain degenerate when the ligands are arranged in an octahedral way.
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The arrangement of ligands around the central ion has no effect on the energy levels of the d-orbitals.
The arrangement of ligands around the central ion has no effect on the energy levels of the d-orbitals.
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The energy level of the d-orbitals in the central ion is lowered due to the repulsion between the ligands and the d-orbitals.
The energy level of the d-orbitals in the central ion is lowered due to the repulsion between the ligands and the d-orbitals.
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The five d-orbitals in the central ion are all alike and have the same energy level.
The five d-orbitals in the central ion are all alike and have the same energy level.
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Study Notes
Coordination Number
- Represents the total number of chemical bonds formed between the central metal ion and the donor atoms of the ligands.
Isomerism
Ionization Isomerism
- Complexes with the same empirical formula that give different ions in solution or ionization.
- Example: [CoIII(NH3)5 Br] SO4 and [CoIII(NH3)5 SO4 ] Br are ionization isomers.
Hydrate Isomerism
- Example: 3 isomers of [Cr(H2O)6]Cl3, differing in color and precipitate reaction with AgNO3.
Ligand Isomerism
- Some ligands themselves are capable of existing as isomers.
- Example: [Co(en)2 (C6 H 4CH 3 NH 2 )]Cl3, with ortho, para, and meta isomers.
Linkage Isomerism
- Found in complexes where ligands can coordinate with the central metal ion through either of two atoms.
- Example: [Co(NH3)4(NO2)]Cl2 and [Co(NH3)4(ONO)]Cl2, differing in color and acid dissociation.
Coordination Isomerism
- Results from an exchange of ligands between the two coordination spheres of a complex compound with both cation and anion complex.
- Examples include Ma2b c type complexes and [M(AB)2]n type complexes.
Complex Geometries
- Ma2b c type complexes can exhibit cis and trans forms.
- [M(AB)2]n type complexes, with unsymmetrical bidentate ligands, can lead to differences in d-orbital energy levels due to ligand field effects.
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Description
Understand the concept of coordination number, its representation, and its application in chemistry. Learn how to calculate the coordination number with examples.
