Expanded campestarene hosts for tetra- and dinuclear uranyl(vi) complexes

Abstract

The first expanded campestarenes based on a keto–enamine scaffold have been constructed using uranyl acetate as a template. Macrocycles with six and eight aryl rings in their backbone host dinuclear and tetranuclear uranium(VI) species, respectively. The complexes were characterized by SCXRD, FT-IR, UV-vis, and NMR spectroscopy, and DFT calculations corroborated their structures.