Dinuclear, diuranyl-containing metallomacrocycles: neutral receptors for dicarboxylates

Abstract

Dinuclear UO2-sal(oph)en metallomacrocycles 1 and 2, containing flexible and rigid cavities, respectively, have been found linearly to recognise and form strong solution complexes with terephthalate, succinate and fumarate dianions in (CD3)2SO; weaker interactions between these hosts and the shorter malonate and monoanionic benzoate were observed.