Molecular structure and properties of silver (I/II/III) containing organometallics

Table of Contents

I. Summary

II. Introduction

III. Mononuclear organometallics

IV. Dinuclear organometallics

V. Polynuclear organometallics

VI. π–Complexes

VII. Conclusion and outlook

Appendix A: Multi–isotopic modelling of mass spectra

Appendix B

Appendix C: Ab initio effective core potentials

Objectives and Topics

This book aims to provide a comprehensive understanding of the molecular factors and properties governing the effectiveness of organosilver reagents in organic synthesis, bridging experimental data with theoretical insights from coordination chemistry. It focuses on characterizing the nature of metal–ligand bonds and reaction mechanisms to facilitate the design of more efficient and selective organometallic catalysts.

• Correlation between molecular structure and chemical reactivity of organosilver compounds.
• Advanced applications of mass spectrometry and X-ray diffraction in structural elucidation.
• Theoretical modeling of kinetic and thermodynamic properties using quantum chemistry.
• Mechanistic insights into catalytic decarboxylation, C–H activation, and C–C bond formation.
• Development of robust mediating compounds for laboratory and industrial applications.

Excerpt from the Book

Summary of Chapters

I. Summary: Provides an overview of the book’s focus on correlating the molecular structure of silver-containing organometallics with their chemical properties to guide future reagent design.

II. Introduction: Discusses the significance of organosilver reagents in organic synthesis and outlines the methodological reliance on mass spectrometry and X-ray diffraction for structural analysis.

III. Mononuclear organometallics: Details the coordination chemistry and reaction mechanisms of mononuclear silver complexes, specifically focusing on decarboxylation and C-H activation.

IV. Dinuclear organometallics: Examines the role of dinuclear organometallic cluster cations in C-C and C-H bond activation processes and their associated fragmentation pathways.

V. Polynuclear organometallics: Explores the formation and mechanistic aspects of silver-alkynyl clusters and polynuclear complexes, emphasizing their utility in complex catalytic transformations.

VI. π–Complexes: Focuses on the bonding models, such as the Dewar–Chatt–Duncanson model, for silver(I)-arene and silver(I)-ethene π-interactions.

VII. Conclusion and outlook: Summarizes the integration of experimental and theoretical approaches to advance the design of new organometallic complexes in interdisciplinary sciences.

Keywords

Organosilver intermediates, Mass spectrometry, Quantum chemistry, Single crystal X–ray diffraction, Organic synthesis, Materials research, Coordination chemistry, Catalysis, Reaction mechanisms, Bond dissociation energy, Molecular structure, Ligand design, Chemical reactivity, Thermodynamics, Kinetics.

Frequently Asked Questions

What is the primary focus of this work?

The book focuses on the coordination chemistry of silver-containing organometallics, providing a deep dive into the molecular structure and properties that make these compounds effective mediators in organic synthesis.

What are the main thematic areas covered?

Key areas include organosilver reaction mechanisms (such as decarboxylation and bond activation), mass spectrometric characterization, quantum chemical modeling, and the structural study of π-complexes and clusters.

What is the main research objective?

The goal is to provide a comprehensive information source that correlates the molecular structure of organosilver compounds with their reactivity, thereby assisting in the design of highly efficient, enantioselective catalysts.

Which scientific methods are primarily utilized?

The research relies on a combination of experimental techniques, specifically single crystal X-ray diffraction and mass spectrometry, complemented by quantum chemical calculations to interpret experimental findings.

What topics are discussed in the main body?

The chapters cover mononuclear, dinuclear, and polynuclear organometallics, as well as π-complexes, with dedicated sections on theoretical approaches and structural determination.

Which keywords characterize the work?

The work is defined by terms like organosilver intermediates, mass spectrometry, quantum chemistry, organic synthesis, coordination chemistry, and materials research.

Why is mass spectrometry emphasized for these compounds?

Mass spectrometry is highlighted for its ability to provide structural information at attomol concentration ranges and to elucidate kinetic and thermodynamic data that are otherwise difficult to obtain.

What role do relativistic effects play in the theoretical calculations?

Relativistic effects are considered essential when working with heavy transition metal atoms (Z > 36) to accurately predict bond energies and orbital energies, which the book addresses through effective core potentials.

How is the Dewar–Chatt–Duncanson model applied?

It is used to explain the bonding in silver(I)-ethene and silver(I)-arene π-complexes, accounting for ligand-to-metal σ-donation and back-donation from the silver d-orbitals.

What is the significance of the decarboxylation study?

Decarboxylation reactions are used as a model system to understand the elementary steps of organosilver catalysis and the formation of key Ag–C bonds in gas-phase and condensed-phase chemistry.