Characterization and thermal behaviour of aluminum gallium and indium complexes of bifunctional tetradenate stiff's bases

The reaction of metal ions with tetradentate Schiff's base has been widely studied during the last few years. The reactions of In [III] isoproxide with bidentate and some tridentate Schiff's bases have been carried out in 1:1, 1:2, and 2:3 molar ratio in dry benzene under anhydrous conditions [1-3]. The Schiff's bases N-salicylidene-2-bydroxyaniline, 2-hydroxy aniline-N-3- methoxyslicylidene,2-hydroxyaniline-N-5-met-koxysalicylidene, and N-salicyli-dene-2-hydroxy-4-methoxyaniline were prepared[4] and the fluorescent characteristics of their Al, Ga and Be complexes were studied [5] The present investigation is concerned with the preparation and characterization of Al [III], In [III], and Ga [III] chelates with some -N[2] O[2]-Schiff's bases