Related Experiment Video
Updated: Feb 11, 2026
10:42
Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
11.2K
Aluminylenes: Synthesis, Reactivity, and Catalysis
1Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.
Accounts of Chemical Research
|February 9, 2026
Summary
Stable aluminylenes, aluminum analogs of carbenes, are now accessible, enabling new applications in synthesis and materials science. Researchers have developed diverse aluminum compounds and demonstrated aluminylene catalysis for alkyne cyclotrimerization.
Area of Science:
- * Inorganic Chemistry
- * Organometallic Chemistry
- * Main-Group Chemistry
Background:
- * Carbenes were once considered transient intermediates but are now widely used.
- * Aluminylenes (R-Al), the aluminum analogs of carbenes, were historically difficult to isolate and study.
- * Previous work established early examples of Al(I) compounds, but free monocoordinate aluminylenes remained elusive until recently.
Purpose of the Study:
- * To report the isolation and characterization of stable aluminylenes under ambient conditions.
- * To explore the synthetic utility of aluminylenes as ligands and synthons for novel aluminum compounds.
- * To investigate the catalytic potential of free aluminylenes in organic transformations.
Main Methods:
- * Synthesis and characterization of various aluminum-containing compounds, including transition-metal complexes and Lewis acid adducts.
- * Isolation of novel aluminylene species using sterically demanding substituents.
- * Investigation of the catalytic activity of aluminylenes in alkyne cyclotrimerization reactions.
Main Results:
- * Successful isolation and characterization of stable, free aluminylenes.
- * Synthesis of a diverse array of aluminum compounds, showcasing aluminylenes' versatility.
- * Demonstration of aluminylene-catalyzed alkyne cyclotrimerization via an Al(I)/Al(III) redox cycle.
Conclusions:
- * Aluminylenes are now an accessible class of low-valent main-group compounds.
- * These species serve as valuable ligands and synthons, enabling new synthetic strategies.
- * Aluminylenes exhibit significant potential in catalysis and materials science, paralleling the impact of stable carbenes.
More Related Videos
Related Concept Videos
02:50Catalysis
30.7K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
30.7K
01:13Introduction to Mechanisms of Enzyme Catalysis
10.8K
For many years, scientists thought that enzyme-substrate binding took place in a simple "lock-and-key" fashion. This model stated that the enzyme and substrate fit together perfectly in one instantaneous step. However, current research supports a more refined view scientists call induced fit. The induced-fit model expands upon the lock-and-key model by describing a more dynamic interaction between enzyme and substrate. As the enzyme and substrate come together, their interaction causes...
10.8K
01:15Dehydration Synthesis
150.4K
Overview
Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new molecule, along with the release of a water molecule. Many physiologically important compounds form by dehydration synthesis reactions, such as complex carbohydrates, proteins, DNA, and RNA.
Synthesis of carbohydrates
Sugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from...
Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new molecule, along with the release of a water molecule. Many physiologically important compounds form by dehydration synthesis reactions, such as complex carbohydrates, proteins, DNA, and RNA.
Synthesis of carbohydrates
Sugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from...
150.4K
00:42Cross-reactivity
33.1K
Overview
33.1K
01:18Reactivity of Enols
4.2K
Enols are a class of compounds where a hydroxyl group is attached to a carbon–carbon double bond, which implies that it is a vinyl alcohol. A carbonyl compound with an α hydrogen undergoes keto–enol tautomerism and remains in equilibrium with its tautomer, the enol form. Usually, the keto tautomer is present in a higher concentration than the enol tautomer due to the higher bond energy of C=O compared to C=C. Moreover, the direction of the keto–enol equilibrium is...
4.2K
02:17Synthesis and Decomposition Reactions
38.3K
Synthesis and decomposition are two types of redox reactions. Synthesis means to make something, whereas decomposition means to break something. The reactions are accompanied by chemical and energy changes.
38.3K