一个基于半刚性苯并三氮唑配体的Ag(Ⅰ)配合物的合成、晶体结构及荧光性质

Synthesis,Crystal Structure and Luminescent Property of Ag(Ⅰ) Complex Based on Semi-rigid Benzotriazole Ligand

合成并表征一个以苯并三氮唑为端基的半刚性配体——1,4-二(苯并三氮唑-1-亚甲基)苯,将其与三氟乙酸银在溶液条件下组装得到了一个新的Ag(Ⅰ)配合物,通过元素分析、X-射线单晶衍射及X-射线粉末衍射对其结构进行了表征。结果表明,此配合物的中心原子Ag(Ⅰ)与两个配体苯并三氮唑端基3位上的N原子配位形成一维无限链,一维无限链之间通过苯并三氮唑基团的π…π堆积作用形成二维网络。对这个Ag(Ⅰ)配合物固体荧光性质进行了测定。结果表明,配合物和配体显示相似的荧光性质,可以归属为配体内的π-π*跃迁。

A semi-rigid ligand with benzotriazole end group,1,4-bis(benzotriazole-1-ylmethyl) benzene was synthesized and confirmed,and a new Ag(Ⅰ) complex was obtained by the ligand reacting with AgCF3CO2 under solution condition. The complex structure was confirmed by elemental analysis,X-ray crystal diffraction and X-ray powder diffraction. The center Ag(Ⅰ) atoms were bridged by two 3-position N atoms from benzotriazole end group of ligands to generate 1 D chain structure. Furthermore,the1 D Ag(Ⅰ) chains were linked to each other by π … π stacking interactions of benzotriazole rings to resulting in 2 D network structure.In addition,luminescent property of Ag(Ⅰ) complex was also investigated.The result indicated that complex showd similar photoluminescent spectra with the ligand,which can be assigned to the π-π*transition in ligand.