两个基于5-(3-氨基苯基)-四唑配体的双核金属配合物:合成、结构与荧光性质(英文)

Two 3-aminophenyl-tetrazolate-based binuclear complexes:synthesis,structure and luminescence

通过水热方法合成2个基于5-(3-氨基苯基)四唑(apt-)配体的金属配合物[Pb2(phen)2(H2O)2(apt)4](Ⅰ)和[Zn2(phen)2(apt)2(N3)2]·H2O(Ⅱ),并进行结构表征和荧光性能的测定.结构研究表明:2个配合物均呈现双核的分子结构,其中配合物Ⅰ中1对apt-离子连接2个独立的PbII八面体,配合物Ⅱ则由2个对称的叠氮离子连接2个中心对称的ZnII离子,2个双核分子进一步通过氢键作用拓展形成二维超分子层.此外,2个配合物均具有良好的热稳定性且表现出由金属到配体电荷转移的荧光发射峰,表明其在荧光材料中具有潜在的应用前景.

Two 3-aminophenyl-tetrazolate （ apt- ）-based metal complexes, [Pb2（phen）2（H2O）2（apt）4]（Ⅰ）和[Zn2（phen）2（apt）2（N3）2]·H2O（Ⅱ）, were hydrothermally obtained. Furthermore, the structures of two complexes were characterized and the luminescent properties were determined. Both complexes are discrete binuclear entities with a pair of apt- anions bridging two separate Pb u octahedra for I and two symmetry-related azide connectors aggregating two centrosymmetric Zn ions for I1 , which are further assembled into two-dimensional supramolecular networks by popular hydrogen-bonding interactions. Additionally, both complexes have better thermal stability and exhibit strong emissions resulting from the metal-to-ligand charge transfer. The latter property suggests their potential application as luminescent materials.