Flexible and Asymmetric Ligand in Constructing Coordinated Complexes: Synthesis Crystal Structures and Fluorescent Characterization

摘要

Flexible and asymmetric ligand L [L = 1-((pyridin-3-yl)methyl)-1H-benzotriazole], is used as a basic backbone to construct complicated metal-organic frameworks. Two new polymers, namely, [Ag2(L)2(NO3)2]n (>1) and [Ag(L)(ClO4)]n (>2), were synthesized and characterized by X-ray structure analysis and fluorescent spectroscopy. The complex >1 gives an “S” type double helical conformation, whereas complex >2 exhibits a 1D zigzag configuration. Different anions affect the silver coordination geometry and crystal packing topology.