Topology diversity and reversible crystal-to-amorphous transformation properties of 3D cobalt coordination polymers from a series of 1D rodlike dipyridyl-containing building blocks and a flexible tripodal acid with additional amide groups

Three novel cobalt(II) coordination polymers based on 1D rodlike dipyridyl-containing chains and a flexible tripodal acid with additional amide groups with unprecedented (3, 5) and (4, 4, 5) connected topology with a Schläfli symbol of (5, 6 ²) (5 ³, 6 ⁴, 7, 8 ²), and (5, 6 ⁵) ₂ (5 ³, 6 ⁶, 7) ₂ (6 ⁴, 8, 10) were reported along with interesting reversible crystal-to-amorphous transformation properties.