A unique 3-D chiral Zn(II) coordination framework with 1,2,3-benzenetricarboxyl and 4,4′-bipyridyl tectons showing 4-connected self-penetrating network and helical character

Hydrothermal reaction of Zn(II) acetate, 4,4′-bipyridyl (bpy) and 1,2,3-benzenetricarboxylic acid (H3bta) results in a 3-D coordination framework {[Zn4(bta)2(Hbta)(bpy)3](H2O)3}n (1), which shows the self-penetrating net with a new 4-connected topological prototype and chiral helical character.

Graphical abstractHydrothermal reaction of Zn(II) acetate, 4,4′-bipyridyl (bipy) and 1,2,3-benzenetricarboxylic acid (H3bta) results in a 3-D coordination framework, which shows the self-penetrating net with a new 4-connected topological prototype and chiral helical character.Figure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights► A self-penetrating 4-connected coordination framework with chiral helical features from Zn(II) and mixed organic ligands of H3bta and bipy. ► Complex 1 represents a unique self-penetrating supramolecular pattern with the unprecedented (4.62.83)2(42.62.82) net topology. ► Homochiral crystalline packing of right-handed or left-handed helices was found in the title complex.