A New Class of Aluminum Cations Based upon Tetradentate (N2O2) Chelating Ligands

David A. Atwood, Jolin A. Jegier, Drew Rutherford

Research output: Contribution to journalArticlepeer-review

132 Scopus citations


Herein are described the synthesis and characterization of the complexes of formula LAIR (where R = Cl and L = Salen (1), SalenCl (2), Acen (3) and where R = Me and L = Salen (4), SalenCl (5), Acen (6); Salen = N,N′-ethylenebis((2-hydroxyphenyl)methylimine), SalenCl = N,N'-ethylenebis((2-hydroxy-5-chiorophenyl)methylimine), Acen = N,N'-ethylenebis((2-hydroxyphenyl)-1-ethylimine)). The LAlCl derivatives dissolve in water and MeOH to yield the cationic complexes [LAl(H2O)2]+Cl- (L = Salen (7), SalenCl (8), Acen (9)) and [LAl(MeOH)2]+Cl- (L = Salen (10), SalenCl (11), Acen (12)), respectively. An alternative preparation of the cationic species involves the reaction of the LAlCl derivative with NaBPh4. This leads to complexes of formula [LAl(MeOH)2]+BPh4- (L = Salen (13), SalenCl (14), Acen (15)). Complexes 4-6 can be reacted with either MeOH or 4-chloro-3,5-dimethylphenol (Ph') to form complexes of general formula LAlOR (R = Me, L = Salen (16), SalenCl (17), Acen (18); R = Ph', L = Salen (19), SalenCl (20), Acen (21)). All of the compounds were characterized by IR, melting points, elemental analyses, and, when soluble, NMR. Additionally, the crystal structures of 7, 13, 15, and 18 were obtained.

Original languageEnglish
Pages (from-to)63-70
Number of pages8
JournalInorganic Chemistry
Issue number1
StatePublished - 1996

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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