tailieunhanh - Ebook Inorganic chemistry (5th edition): Part 2

(BQ) Part 2 book "Inorganic chemistry" has contents: Parallels between main group and organometallic chemistry, parallels between main group and organometallic chemistry, organometallic chemistry, coordination chemistry IV - Reactions and mechanisms,. and other contents. | M C O M C O Chapter 10 Coordination Chemistry II: Bonding Evidence for Electronic Structures A successful bonding theory must be consistent with experimental data. This chapter reviews experimental observations that have been made on coordination complexes, and describes electronic structure and bonding theories used to account for the properties of these complexes. Thermodynamic Data A critical objective of any bonding theory is to explain the energies of chemical compounds. Inorganic chemists frequently use stability constants, sometimes called formation constants, as indicators of bonding strength. These are equilibrium constants for reactions that form coordination complexes. Here are two examples of the formation of coordination complexes and their stability constant expressions:* [Fe(H2O)6]3 + (aq) + SCN - (aq) m [Fe(SCN)(H2O)5]2 + (aq) + H2O (l) K1 = [Cu(H2O)6]2 + (aq) + 4 NH3 (aq) m [Cu(NH3)4(H2O)2]2 + (aq) + 4 H2O (l) K4 = [FeSCN2 + ] = 9 * 102 [Fe3 + ][SCN - ] [Cu(NH3)42+] [Cu2 + ][NH3]4 = 1 * 1013 In these reactions in aqueous solution, the large stability constants indicate that bonding of the metal ions with incoming ligands is much more favorable than bonding with water, even though water is present in large excess. In other words, the incoming ligands, SCNand NH3, win the competition with H2O to form bonds to the metal ions. Table provides equilibrium constants for reactions of hydrated Ag+ and Cu2 + with different ligands to form coordination complexes where an incoming ligand has replaced a water molecule. The variation in these equilibrium constants involving the same ligand but different metal ion is striking. Although Ag+ and Cu2 + discriminate significantly between each of the ligands relative to water molecules, the differences are dramatic if the formation constants are compared. For example, the metal ion–ammonia constants are relatively similar (K for Cu2 + is ~ times larger than the value for Ag+ ), as .

• Sinh học
• Reactions and mechanisms
• Coordination chemistry IV
• Inorganic chemistry
• Organometallic chemistry
• Parallels between main group
• Parallels between main group
• Advanced organic chemistry
• Chemical bonding
• Molecular structure
• Nucleophilic substitution
• Elimination reactions
• Polar addition
• Substitution reactions
• Bài viết nghiên cứu khoa học
• Reaction mechanism
• Potential energy surface
• Quantum chemical methods
• Reactions of trimethylaluminum
• Storage Stability Problem
• A discussion of all possible
• reactions taking place
• in a mixture of as many
• as 400 organic compounds
• is beyond the scope of any review
• Scientific reports
• scientific research
• biochemistry
• Structural biochemistry
• bacteria
• chemical reaction
• Organic chemistry
• Radical reactions
• Conformations of alkanes
• Their mechanisms
• Intermolecular forces
• Ffunctional group
• Families of carbon compounds
• Mesoporous materials
• Mineral replacement reactions
• Norwegian Continental Shelf
• Laboratory experiments
• Scanning and transmission electron microscopy
• Organic structures
• Structure of molecules
• Organic reactions
• The carbonyl group
• Rates and mechanisms
• The atmosphere
• Environmental chemistry
• Gas phase reactions
• Photochemical ozone
• Acid deposition
• Deposition mechanisms
• Chemokine Responses
• Hepatitis C Virus
• Treatment Responses
• Antiviral Treatment
• Immunological Pathogenesis
• Septic Reactions