A novel double-stranded trinuclear bis(tridipyrrin)zinc(Ⅱ)complex,constructed from a linearπ-conjugated tridipyrrin ligand,was synthesized and characterized.The complex featuring six directly linked dipyrrin units e...A novel double-stranded trinuclear bis(tridipyrrin)zinc(Ⅱ)complex,constructed from a linearπ-conjugated tridipyrrin ligand,was synthesized and characterized.The complex featuring six directly linked dipyrrin units exhibits a stable double-helical structure with two non-superimposable P and M enantiomers,as confirmed by X-ray crystallography.Chirality was further demonstrated through HPLC separation and mirror-image circular dichroism(CD)spectra.The complex shows strong near-infrared(NIR)absorption and excellent solubility in various solvents,attributed to its sterically hindered structure.Spectroscopic,electrochemical,and theoretical studies revealed its unique electronic properties and redox behavior.This work advances the design of chiral NIR-active metallo-supramolecular systems and highlights potential applications in chiroptical mateials.展开更多
基金supported by the National Natural Science Foundation of China(22478005,22578006 and 22271002)the Natural Science Foundation of Anhui Province(2308085J14)the Scientific Research Foundation of the Higher Education Institutions of Anhui Province(2022AH051142).
文摘A novel double-stranded trinuclear bis(tridipyrrin)zinc(Ⅱ)complex,constructed from a linearπ-conjugated tridipyrrin ligand,was synthesized and characterized.The complex featuring six directly linked dipyrrin units exhibits a stable double-helical structure with two non-superimposable P and M enantiomers,as confirmed by X-ray crystallography.Chirality was further demonstrated through HPLC separation and mirror-image circular dichroism(CD)spectra.The complex shows strong near-infrared(NIR)absorption and excellent solubility in various solvents,attributed to its sterically hindered structure.Spectroscopic,electrochemical,and theoretical studies revealed its unique electronic properties and redox behavior.This work advances the design of chiral NIR-active metallo-supramolecular systems and highlights potential applications in chiroptical mateials.
