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Ligand Substitution Reactions of Transition Metal Organometallic Complexes and Homogeneous Catalysis
Author(s) -
Basolo Fred
Publication year - 1986
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.198600035
Subject(s) - chemistry , transition metal , ligand (biochemistry) , catalysis , substitution (logic) , reactivity (psychology) , substitution reaction , associative substitution , group 2 organometallic chemistry , organometallic chemistry , homogeneous , homogeneous catalysis , triad (sociology) , metal , computational chemistry , combinatorial chemistry , stereochemistry , crystallography , organic chemistry , molecule , thermodynamics , medicine , psychology , biochemistry , physics , receptor , alternative medicine , pathology , computer science , psychoanalysis , programming language
Transition metal organometallic homogeneous catalysts depend on the ease of ligand substitution in one or more of the catalytic steps. Thus, it follows that the more we learn about the factors which affect rates of ligand substitution, the better we will be able to design useful catalysts. Three different types of approaches to the enhancement of ligand substitution are discussed. These are (1) through the use of spectator ligands which permit an 18‐electron system to react by an associative process, (2) the relative rates of substitution of a 17‐electron and a corresponding 18‐electron system, and (3) the reactivity order 1st row < 2nd row > 3rd row transition metals for a given metal triad. Specific examples are given for each of these approaches to generate more substitution labile organometallic compounds.