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Properties of Organometallic Compounds

Properties of Organometallic Compounds

Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.

Nuclear Transmutation

Nuclear Transmutation

Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed...

Properties of Transition Metals

Properties of Transition Metals

Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.

Metal-Ligand Bonds

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...

Oxymercuration-Reduction of Alkenes

Oxymercuration-Reduction of Alkenes

Oxymercuration–reduction of alkenes is one of the major reactions converting alkenes to alcohols. It involves the hydration of alkenes with mercuric acetate in a mixture of tetrahydrofuran and water, forming an organomercury adduct. This is followed by a demercuration step in which the adduct is reduced to an alcohol using sodium borohydride.

Hydroboration-Oxidation of Alkenes

Hydroboration-Oxidation of Alkenes

In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.

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Related Experiment Video

Updated: Sep 11, 2025

A Protocol for Safe Lithiation Reactions Using Organolithium Reagents

A Protocol for Safe Lithiation Reactions Using Organolithium Reagents

Published on: November 12, 2016

Transuranium organometallic chemistry.

Benjamin L L Réant¹, Cameron N Deakin¹, Ross E MacKenzie¹

¹Centre for Radiochemistry Research, The University of Manchester, Manchester, UK.

Nature Reviews. Chemistry

|August 13, 2025

Summary

This summary is machine-generated.

Coordination chemistry explores actinide elements, revealing nuanced properties previously hidden by relativistic effects and technical challenges. Modern advancements enable new synthetic and analytical approaches to understanding these fascinating transuranium elements.

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Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene

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Last Updated: Sep 11, 2025

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Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene

Published on: March 20, 2017

Area of Science:

Coordination chemistry
Actinide chemistry
Transuranium element research

Background:

Actinide chemistry is crucial for understanding elements with unique relativistic effects and technical challenges.
Historical understanding of transuranium elements largely stems from practical needs during the Manhattan Project.
Limited synthetic exploration historically hindered deep understanding of their fundamental bonding and behavior.

Purpose of the Study:

To review the discovery and history of transuranium elements.
To highlight logistical demands in advancing actinide chemistry.
To present recent progress in transuranium organometallic and metal-organic chemistry.

Main Methods:

Review of historical synthesis and analytical data.
Discussion of contemporary synthetic, analytical, and computational advancements.
Focus on organometallic and metal-organic chemistry approaches.

Main Results:

Contemporary research reveals more nuanced properties of transuranium elements than previously appreciated.
Advancements in synthesis and analysis are overcoming historical limitations.
The field of transuranium coordination chemistry is maturing, offering deeper insights.

Conclusions:

Coordination chemistry is key to unlocking the nature of actinide elements.
Modern techniques are enabling unprecedented exploration of transuranium elements.
The field is progressing towards a more nuanced understanding of their chemical behavior.