Abstract
A series of copillar[5]arene mono-Schiff bases were conveniently synthesized by the condensation reaction of pillar[5]arene mono-oxyacetohydrazide with substituted salicylaldehydes, isatins, acetoacetone and terephthalaldehyde in refluxing ethanol. Determination of single crystal structures indicated that the chain unit of mono-Schiff base exists in the outside of the cavity of copillar[5]arene. The complexing ability of these Schiff base ligands to transition metal ions were investigated by UV spectra.
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