Domanda del libro di testo
What is the systematic name for each of the following ions?
(a) [MnCl4]2-
(b) [Ni(NH3)6]2+
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Ch.21 - Transition Elements and Coordination Chemistry
McMurry8th EditionChemistryISBN: 9781292336145
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TOC.tableOfContents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
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McMurry 8th EditionCh.21 - Transition Elements and Coordination ChemistryProblema 21.127a
McMurry 8th EditionCh.21 - Transition Elements and Coordination ChemistryProblema 21.127aCapitolo 21, Problema 21.127a
For each of the following complexes, describe the bonding using valence bond theory. Include orbital diagrams for the free metal ion and the metal ion in the complex. Indicate which hybrid orbitals the metal ion uses for bonding, and specify the number of unpaired electrons.
(a) [AuCl4]2 (square planar)
Guida verificata passo dopo passo1
Identify the oxidation state of the metal ion in the complex. For [AuCl_4]^2-, determine the oxidation state of Au.
Determine the electron configuration of the free metal ion. For Au, consider its position in the periodic table and its electron configuration.
Draw the orbital diagram for the free metal ion, showing the distribution of electrons in its d orbitals.
Consider the geometry of the complex (square planar) and determine the hybridization of the metal ion. Identify which orbitals are involved in hybridization.
Draw the orbital diagram for the metal ion in the complex, showing the hybrid orbitals and the number of unpaired electrons.
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Concetti chiave
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Valence Bond Theory
Valence Bond Theory (VBT) explains how atoms in a molecule bond by overlapping their atomic orbitals. It emphasizes the role of hybridization, where atomic orbitals mix to form new hybrid orbitals that can accommodate bonding pairs of electrons. This theory helps in predicting the geometry of molecules based on the types of hybrid orbitals involved.
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00:47
Valence Shell Electron Pair Repulsion Theory
Hybridization
Hybridization is the process of combining atomic orbitals to create new hybrid orbitals that are suitable for the pairing of electrons to form chemical bonds. In the case of the square planar complex [AuCl4]2-, the gold ion undergoes dsp2 hybridization, utilizing one d orbital, one s orbital, and two p orbitals to form four equivalent hybrid orbitals for bonding.
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00:51Hybridization
Unpaired Electrons
Unpaired electrons are electrons that occupy an orbital singly rather than in pairs. The presence of unpaired electrons is crucial for determining the magnetic properties of a complex and its reactivity. In the context of [AuCl4]2-, analyzing the electron configuration of the gold ion before and after hybridization helps identify the number of unpaired electrons, which influences the complex's overall behavior.
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04:44Electron Geometry
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Six isomers for a square planar palladium(II) complex that contains two Cl-and two SCN-ligands are shown below.
(a) Which structures are cis-trans isomers?
(b) Which structures are linkage isomers?
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Domanda del libro di testo
Tell how many diastereoisomers are possible for each of the following complexes, and draw their structures.
(a) Pt(NH3)3Cl (square planar)
(b) [FeBr2Cl2(en)]-
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Draw a crystal field energy-level diagram, and predict the number of unpaired electrons for each of the following:
(a) [Mn(H2O)6]2+
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Cobalt(III) trifluoroacetylacetonate, Co(tfac)3, is a sixc oordinate, octahedral metal chelate in which three planar, bidentate tfac ligands are attached to a central Co atom:
(a) Draw all possible diastereoisomers and enantiomers of Co(tfac)3.
105
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Domanda del libro di testo
For each of the following complexes, draw a crystal field energy-level diagram, assign the electrons to orbitals, and predict the number of unpaired electrons.
(a) [Pt(NH3)4]2+ (square planar)
109
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