Variability of structural motifs in the crystal structure of U(vi) complexes with p-methoxybenzoic acid

Abstract

New complexes of U(VI) with p-methoxybenzoic acid were synthesized and their crystal structures were determined. Three uranyl-based structural units were found: a simple 1 : 3 complex anion, a dimeric two-nuclear complex, and an infinite coordination polymer. Two of the obtained compounds contained two different structural units simultaneously. One of the compounds exhibited an unprecedented structure for uranyl compounds based on 0D and 1D structural units. Electron and IR spectra of the compounds were correlated with the crystal structure of the obtained complexes.