一个含芳乙烯基的锌配合物的结构和荧光性质

摘要

含芳乙烯基的O,N-混配体(H2L和bpeb)与锌盐通过溶剂热方法合成了一个新颖的配位聚合物[Zn2L2(bpeb)]n,并对新化合物进行了X-射线单晶衍射、热重、红外、荧光等表征.晶体结构分析表明,柔性的O-配体L2-与Zn2+离子配位,形成了有趣的P型(右手)和M型(左手)两种不同的螺旋结构,再通过N-配体bpeb桥联金属形成多孔的二维层,进一步形成了互锁的三维超分子结构.常温下的荧光测试表明,在波长370 nm光激发下,固体在494 nm处有最大荧光发射,因此新物质是一种潜在的蓝色荧光固体材料.%One novel coordination polymer,[Zn2L2(bpeb)]n,was synthesized from O,N-mixed ligands with artomic ethenyl groups(H2L and bpeb)and Zn(NO3)2·6H2O under solvothermal conditions,and characterized by X ray single crystal diffraction,thermogravimetry analysis,infrared spectrum,fluorescence spectrum,and so on.Crystal structure analysis revealed that the flexible L2-ligands coordinated with Zn atoms generate one-dimensional(1D)ladders of [Zn2L2]n integrating M(left-handed)or P(right-handed)helical information,and the N-ligands bridge zinc ions assembled 2D porous 6-connected coordination polymeric layers,which organized an interesting 3D interlocked supramolecular architecture.The new compound showed photoluminescence with emission maximum at 494 nm.