Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Lecture

Alkenes in Organometallic Chemistry

In course

CH-223: Organometallic chemistry

Basic organometallic chemistry will be covered in this course.

Structure and bonding in organometallic compounds.
reactivity of organometallic compounds, stoichiometric reactions, catalyzed reactions and reaction mechanisms. ...

Description

This lecture covers the discovery of alkene complexes, the bonding model for alkene-metal interactions, the synthesis methods for alkene complexes, and the rationalization of nucleophilic attack in these complexes. It also discusses the Dewer-Chatt-Duncanson model, the 18 VE rule, and the influence of CR3 groups on the bonding. The lecture concludes with examples of alkene complex reactions, such as polymerization and B-elimination, and the breakdown of rules for nucleophilic attack predictions.

Instructors (2)

Marinella Mazzanti

Felix Daniel Bobbink

Official source

Ontological neighbourhood

Chemistry

Organic chemistry: Organometallic chemistry

Inorganic chemistry: Coordination chemistry

Related concepts (32)

Alkene

In organic chemistry, an alkene is a hydrocarbon containing a carbon–carbon double bond. The double bond may be internal or in the terminal position. Terminal alkenes are also known as α-olefins. The International Union of Pure and Applied Chemistry (IUPAC) recommends using the name "alkene" only for acyclic hydrocarbons with just one double bond; alkadiene, alkatriene, etc., or polyene for acyclic hydrocarbons with two or more double bonds; cycloalkene, cycloalkadiene, etc.

Chemical bond

A chemical bond is a lasting attraction between atoms or ions that enables the formation of molecules, crystals, and other structures. The bond may result from the electrostatic force between oppositely charged ions as in ionic bonds, or through the sharing of electrons as in covalent bonds. The strength of chemical bonds varies considerably; there are "strong bonds" or "primary bonds" such as covalent, ionic and metallic bonds, and "weak bonds" or "secondary bonds" such as dipole–dipole interactions, the London dispersion force, and hydrogen bonding.

Transition metal alkene complex

In organometallic chemistry, a transition metal alkene complex is a coordination compound containing one or more alkene ligands. The inventory is large. Such compounds are intermediates in many catalytic reactions that convert alkenes to other organic products. The simplest monoalkene is ethene. Many complexes of ethene are known, including Zeise's salt (see figure), Rh2Cl2(C2H4)4, Cp*2Ti(C2H4), and the homoleptic Ni(C2H4)3. Substituted monoalkene include the cyclic cyclooctene, as found in chlorobis(cyclooctene)rhodium dimer.

Coordination complex

A coordination complex is a chemical compound consisting of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those that include transition metals (elements like titanium that belong to the periodic table's d-block), are coordination complexes. Coordination complexes are so pervasive that their structures and reactions are described in many ways, sometimes confusingly.

Nucleophilic substitution

In chemistry, a nucleophilic substitution is a class of chemical reactions in which an electron-rich chemical species (known as a nucleophile) replaces a functional group within another electron-deficient molecule (known as the electrophile). The molecule that contains the electrophile and the leaving functional group is called the substrate.R. A. Rossi, R. H. de Rossi, Aromatic Substitution by the SRN1 Mechanism, ACS Monograph Series No. 178, American Chemical Society, 1983. .

Related lectures (45)

Metal Carbonyls: Bonding and Applications

Explores metal-carbonyls, their bonding with CO, IR spectra effects, and catalytic applications in hydroformylation.

Infrared Spectroscopy in Bonding: Carbonyl Compounds

Explores Infrared Spectroscopy in bonding with a focus on carbonyl compounds and discusses the factors influencing the color of transition metal complexes.

Organometallic Chemistry: Fundamentals

Covers the fundamentals of organometallic chemistry, including ligand types, bonding, reactivity, and applications in catalysis and medicine.

Chemical Bonding: Lewis Structures and Molecular Shapes

Explores chemical bonding, Lewis structures, molecular shapes, and molecular polarity.

Basic Notions of Organic Chemistry