title: Template-directed synthesis of flexible porphyrin nanocage and nanorings via one-step olefin metathesis.
abstract: We describe the fabrication of a suite of flexible porphyrin cages and nanorings from a simple tetraalkene-derived zinc porphyrin monomer via a highly efficient template-directed strategy. The zinc porphyrin monomers were preorganized together by coordination with N atoms of multidentate ligands. Subsequent one-step olefin metathesis furnished a bisporphyrin cage, a triporphyrin nanoring, and a hexaporphyrin nanoring. In the case of the hexaporphyrin nanoring, 24 terminal olefins from six porphyrin monomers reacted with each other to form 12 new double bonds, delivering the final product. The triporphyrin and hexaporphyrin nanorings were further employed as hosts to encapsulate C60 and C70.
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University , Hangzhou 310036, P. R. China.
authors.forename: Bin
authors.initials: B
authors.lastname: Zhu
authors.forename: Huanxin
authors.initials: H
authors.lastname: Chen
authors.forename: Wei
authors.initials: W
authors.lastname: Lin
authors.forename: Yang
authors.initials: Y
authors.lastname: Ye
authors.forename: Jing
authors.initials: J
authors.lastname: Wu
authors.forename: Shijun
authors.initials: S
authors.lastname: Li
mesh_terms: D000475:Alkenes / Q000737:chemistry*; D060326:Chemistry Techniques, Synthetic; D008024:Ligands; D008665:Metalloporphyrins / Q000138:chemical synthesis* / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*
chemical_list: D000475:Alkenes; D008024:Ligands; D008665:Metalloporphyrins