Chapter headings and selected papers: Foreword. Preface. Abbreviations. Introduction. Definitions. Ligand coupling. Pseudorotation. Organization of the book. References. The Ligand Coupling Mechanism. Historical background. Mechanistic aspects. References. Ligand Coupling Involving Organosulfur Compounds. Sulfonium salts. Sulfoxides. Sulfilimines. Sulfones. Polysulfanes. Oxathietanes. References. Ligand Coupling Involving Organophosphorus Compounds. Decomposition of pentavalent phosphorane derivatives. Reactions involving phosphorus (V) reagents. Reactions involving phosphorus (III) reagents. References. Ligand Coupling Involving Organoiodine Compounds. Diaryliodonium salts. Arylvinyliodonium salts. Alkynylaryliodonium salts. Arylperfluoroalkyliodonium salts. Aryliodine (III) derivatives. References. Ligand Coupling Involving Organobismuth Compounds. Arylation of inorganic substrates. C-Arylation with pentavalent organobismuth. O-Arylation with pentavalent organobismuth. S- and N- Arylation with pentavalent organobismuth. Ligand coupling with organobismuthonium salts. Mechanistic studies. Copper-catalysed reactions. References. Ligand Coupling Involving Organolead Compounds. Acyloxylation reactions, a brief overview. Arylation reactions. Vinylation reactions. Alkynylation reactions. Mechanistic studies on the reactions of organolead derivatives. Copper-catalysed arylation reactions. References. Ligand Coupling Involving Other Heteroatoms. Organoantimony. Organoselenium. Organotellurium. Organothallium. References. Index.