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Table of contents
- Sigma bond metathesis reaction in 2021
- Metathesis reaction lab
- Types of metathesis reactions
- Sigma bond metathesis vs oxidative addition
- Organometallic hypertextbook
- Metathesis reactions examples
- Functionalization reactions
- Organometallic reactions
Sigma bond metathesis reaction in 2021
Metathesis reaction lab
Types of metathesis reactions
Sigma bond metathesis vs oxidative addition
Organometallic hypertextbook
Metathesis reactions examples
Functionalization reactions
Organometallic reactions
Why are sigma bonds important to carbon nanotubes?
The sigma bonds confer remarkable mechanical properties to the carbon nanotubes, at least for tensile stress. Single-wall nanotubes are, in addition, extremely flexible. It is not a surprise, then, that these nanostructures are an interesting constituent for the making of composite materials.
What are the three types of σ bond activation?
The σ-bond activation reactions promoted by transition metal complexes can be grouped in three classes: oxidative addition, also denoted as homolytic cleavage, heterolytic cleavage, and σ-bond metathesis. The first step for all them is the coordination of that bond to the transition metal, to form a L n M (η 2 -X-Y) σ-complex ( Scheme 1 ).
Why does the induction of the sigma bond occur?
The induction occurs because they promote the cleavage of the bond by themselves or because lose H 2 or HCl to generate 14-valence electrons transitory osmium (II) intermediates (OsCl 2 (PR 3) 2 or OsHX (PR 3) 2 ), which are in many cases the real active species.
Which is part of sigma bond undergoes metathesis?
In organometallic chemistry, sigma-bond metathesis is a chemical reaction wherein a metal-ligand sigma bond undergoes metathesis (exchange of parts) with the sigma bond in some reagent. The reaction is illustrated by the exchange of lutetium (III) methyl complex with a hydrocarbon (R-H):
Last Update: Oct 2021