A New Look on Octet‐Compliant Macrocyclic Organoaluminum Carboxylates as Dormant Poly‐Lewis Acids

A more in‐depth understanding of the multi‐faceted chemistry of organoaluminum complexes is continually vital for the comprehension and development of new reagents and catalytic systems as well as molecular building blocks for modern functional materials. In this report we utilize a macrocyclic tetr...

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Bibliographic Details
Published in:European journal of inorganic chemistry 2020-01, Vol.2020 (1), p.119-127
Main Authors: Terlecki, Michał, Justyniak, Iwona, Prochowicz, Daniel, Lewiński, Janusz
Format: Article
Language:English
Subjects:
Carboxylate ligands
Carboxylates
Dormant Lewis acidity
Functional materials
Inorganic chemistry
Lewis acids
Ligands
Naphtha
Organic chemistry
Organoaluminum compounds
Reagents
Supramolecular chemistry
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Summary:A more in‐depth understanding of the multi‐faceted chemistry of organoaluminum complexes is continually vital for the comprehension and development of new reagents and catalytic systems as well as molecular building blocks for modern functional materials. In this report we utilize a macrocyclic tetranuclear organoaluminum derivative of 2,3‐naphthalenedicarboxylic acid (naphtha‐H2), [(Me2Al)2(naphtha)]2, as a model complex to probe both the dormant Lewis acidity and self‐assembly processes of octet‐compliant multinuclear macrocyclic organoaluminum compounds in the presence of mono‐ or bidentate pyridine ligands. The results nicely demonstrate that multinuclear octet‐compliant organoaluminum clusters may effectively act as so‐called poly‐Lewis acids, utilizing their dormant Lewis acidity with the preservation or cleavage of the parent macrocycle depending on the character of both donor ligands and aromatic subunits of the dicarboxylate ligands. We report on a macrocyclic tetranuclear organoaluminum derivative of 2,3‐naphthalenedicarboxylic acid, and its unique and contrasting molecular and supramolecular complexes with various pyridine and bipyridines. The results demonstrate that multinuclear octet‐compliant organoaluminum clusters may effectively act as PLA, utilizing their dormant Lewis acidity.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.201901288