新型一维链状配位聚合物[Cd2(C23H14O6)2(C10H9N3)2(H2O)]n的研究

配位超分子聚合物的设计合成与应用研究一直是配位化学、超分子化学、生物无机化学及材料科学等领域的热点研究课题之一,具有微孔结构的配位聚合物吸引了许多科学家的目光,这不仅因为该类配合物具有新颖的结构,展现出多种诱人的拓扑结构,更主要的 是因为它们在离子交换、催化、磁性材料、光学材料及气体贮存领域的应用潜力[1～3].

Study on a Novel 1D Polymeic Complex [Cd2(C23H14O6)2(C10H9N3)2(H2O)]n

The title complex [Cd2(C23H14O6)2(C10H9N3)2(H2O)]n or [Cd2(pam)2(bpa)2(H2O)]n, (Hpam=pamoic acid, bpa=bis(2-pyridyl)amino) has been hydrothermally synthesized and characterized by X-ray diffraction, elemental analysis, thermal analysis, IR spectroscopy and fluorescence property. The X-ray single crystal diffraction analysis demonstrates that Cd(Ⅱ) ion is coordinated by four oxygen atoms from two different pam ligands, two nitrogen atoms from one bpa ligand, and one bridging coordinated water, forming a octahedron. The complex molecules form double-stranded helical chains with 1D nano-scale tub structure through bridging pam ligands and μ2-O bridge water molecules. These coordination polymer chains are further extended by Van Der Waals Forces and π-π stacking interactions to form a 3D supramolecular structure. CCDC: 743752.