Novel 2D → 2D Entanglement Pattern in the Coordination Network with Both Polyrotaxane and Polycatenane Features

The combination of α,α′-dihydroxybibenzyl-4,4′-dicarboxylate and 4,4′-bipyridine as bridging ligands to bind Zn(II) leads to an unprecedented 2D → 2D entanglement pattern having both polyrotaxane and polycatenane features.以α,α′-二羟基联苄-4,4′-二羧酸酯（α,α′-dihydroxybibenzyl-4,4′-dicarboxylate）与4,4′-联吡啶（4,4′-bipyridine）作为桥联配体，与锌(II)离子（Zn(II)）配位结合，可构筑得到兼具聚轮烷（polyrotaxane）与聚索烃（polycatenane）特征的前所未有的二维→二维缠结结构。