Bimetallic aluminum and gallium chelates with N2O2 ligands

Michael A. Van Aelstyn, Timothy S. Keizer, David L. Klopotek, Shengming Liu, Miguel Angel Munoz-Hernandez, P. Wei, David A. Atwood

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


A wide range of bimetallic aluminum molecules are formed in combinations between Salen Schiff base ligands and either AlR3 or AlR2Cl. They are of the general formulas L(AlR2)2 and L(AlRCl)2 with R = alkyl and L = Salen(tBu) ligand with relatively unusual `backbone' connections between the nitrogen atoms, 1,2-cyclohexylene (Salcen(tBu)), 1,4-butylene (Salben(tBu)), 1,5-pentylene (Salpten(tBu)), 1,6-hexylene (Salhen(tBu)), and 1,4-phenylene (1,4-Salophen(tBu)). Additionally, previously unknown ligands were employed with the `backbones' 1,4-bis(p-aminobenzyl)benzene (Salmaben(tBu)), 1-(m-aminobenzoyl)-4-(m-aminobenzyl)benzene (Salmabmaben(tBu)), and 4,4′-bis(m-aminobenzoyl)diphenylmethane (Salmadmen(tBu)). The ligands for these compounds were designed to feature two group 13 sites at long and varying distances from one another. The compounds were characterized by mp analyses, IR, and 1H NMR, and X-ray structures were determined for the examples R,R′-Salcen(tBu){AlMe2}2 (1), Salben(tBu){AlMe2}2 (2), 1,4-Salophen(tBu){GaEt2}2 (7), R,R′-Salcen(tBu){AlMeCl}2 (11), Salben(tBu){AlMeCl}2 (13), and Salhen(tBu){AlMeCl}2 (14).

Original languageEnglish
Pages (from-to)1796-1801
Number of pages6
Issue number9
StatePublished - 2000

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry


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