Generation of Three-Dimensional Networks through Aliphatic Chain Disorder in a Divalent Metal Dicarboxylate/Organodiimine Coordination Polymer System

Hydrothermal synthesis has afforded coordination polymers incorporating the kinked dipodal organodiimine 4,4′-dipyridylamine (dpa) and the flexible aliphatic dicarboxylate suberate dianion, with a general formulation of [M(sub)(dpa)(H2O)]n (sub = suberate, M = Co, 1; M = Ni, 2). Both 1 and 2 exhibit crystallographically disordered suberate ligands, producing a three-dimensional “ligand vacancy” α-Po coordination polymer network composed of two different types of [M(sub)(dpa)(H2O)]n idealized layers.

通过水热合成法制备得到一类配位聚合物，该聚合物引入了弯折双齿有机二亚胺4,4'-联吡啶胺(4,4′-dipyridylamine, dpa)与柔性脂肪族二羧酸酯辛二酸二阴离子，其通式为[M(sub)(dpa)(H₂O)]ₙ（其中sub为辛二酸根，M为钴时记为化合物1，M为镍时记为化合物2）。化合物1与2均存在晶体学上无序的辛二酸根配体，由此构筑出由两种不同的[M(sub)(dpa)(H₂O)]ₙ理想化层构成的三维“配体空位”型α-Po配位聚合物网络。