Hydrothermal Synthesis and Crystal Structures of 1D Alternating Chain Lanthanide Coordination Polymers: [Er(dpa)(pya)(H_2O)]_n and [Nd_2(pya)_6(H_2O)_4]_n

• 一维交替链状稀土配位聚合物[Er(dpa)(pya)(H_2O)]_n和[Nd_2(pya)_6(H_2O)_4]_n的水热合成及结构表征