From racemic compound to spontaneous resolution: A series of homochiral lanthanide coordination polymers constructed from presynthesized [Sb2(tart)2]2− metalloligands

► 1-6 were obtained by spontaneous resolution from racemic [Sb2(tart)2]2−. ► 1-6 are isostructural and feature novel 1D homochiral chains. ► There are three types of H-bonded helices in the 3D supramolecular net of 1-6.