Related Experiment Video
Updated: Sep 14, 2025

Preparation of SNS CobaltII Pincer Model Complexes of Liver Alcohol Dehydrogenase
Published on: March 19, 2020
Diverse Reactivity of a Pincer-Type Dialuminum Complex
Ren Zhou1, Yuqi Jiang1, Ruihao Huang1
1College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
Researchers explored the reactivity of a trimethyl dialuminum(III) complex with a [NNN]3- pincer ligand. New cyclic dialuminum species were formed through reactions with solvents and protic substrates, showcasing diverse aluminum chemistry.
Area of Science:
- Organometallic Chemistry
- Main Group Chemistry
- Pincer Ligand Chemistry
Background:
- Trianionic pincer-type ligands are well-studied in main group chemistry.
- Aluminum complexes supported by these ligands are less explored.
- A trimethyl dialuminum(III) complex with an [NNN]3- pincer ligand was synthesized.
Purpose of the Study:
- To investigate the reactivity of a trimethyl dialuminum(III) complex.
- To synthesize novel cyclic dialuminum species.
- To understand the structural transformations of aluminum complexes.
Main Methods:
- Nuclear magnetic resonance (NMR) spectroscopy
- X-ray crystallography
- Reactions with tetrahydrofuran and various protic substrates
- Iodination reactions
- Reactions with N-heterocyclic carbene and acetonitrile
Main Results:
- Formation of cyclic dialuminum species (2-5) through solvent and protic substrate reactions.
- Observation of solvent-induced structural rearrangement and protonolysis of Al-CH3 bonds.
- Synthesis of asymmetric (6) and symmetric (7) iodinated dialuminum complexes.
- Generation of spirocyclic (8) and insertion (9) products from iodinated derivatives.
Conclusions:
- The trimethyl dialuminum(III) complex exhibits diverse reactivity.
- Novel cyclic, spirocyclic, and insertion products were successfully synthesized.
- This study expands the understanding of aluminum pincer chemistry.
More Related Videos
11:44Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-phosphinetriyltripiperidine]}palladium Under Mild Reaction Conditions
Published on: March 20, 2014
10:52Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
Published on: July 27, 2022
Related Concept Videos
Complexation Equilibria: The Chelate Effect
EDTA: Chemistry and Properties
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction
Complexation Equilibria: Factors Influencing Stability of Complexes
Radical Reactivity: Nucleophilic Radicals
Valence Bond Theory