One-dimensional structure of an aluminum coordination compound

The reaction of trimethylaluminum with a salen {salenH₂ = [N,N′-bis(salicylidene)ethylenediamine]} ligand in toluene afforded the complex [Me₂AlOC₆H₄CH=NCH₂-] _n. It shows a one-dimensional structure in the crystal state with pentacoordinate aluminum. This complex was characterized by ¹H and ¹³C NMR spectroscopy, IR spectroscopy, single-crystal X-ray structure, and elemental analysis. The reaction of trimethylaluminum with a salen {salenH₂ = [N,N′-bis(salicylidene)ethylenediamine]} ligand afforded an aluminum-centered chain structure of composition [Me ₂AlOC₆H₄CH=NCH₂-]_n in the crystal.