title: A self-assembled light-harvesting array of seven porphyrins in a wheel and spoke architecture.
abstract: [reaction: see text]A shape-persistent cyclic array of six zinc porphyrins provides an effective host for a dipyridyl-substituted free base porphyrin, yielding a self-assembled structure for studies of light harvesting. Energy transfer occurs essentially quantitatively from uncoordinated to pyridyl-coordinated zinc porphyrins in the cyclic array. Energy transfer from the coordinated zinc porphyrin to the guest free base porphyrin is less efficient (phitrans approximately 40%) and is attributed to a Förster through-space process.
authors.affiliation: Department of Chemistry, North Carolina State University, Raleigh 27695-8204, USA.
authors.forename: A
authors.initials: A
authors.lastname: Ambroise
authors.forename: J
authors.initials: J
authors.lastname: Li
authors.forename: L
authors.initials: L
authors.lastname: Yu
authors.forename: J S
authors.initials: JS
authors.lastname: Lindsey
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D008968:Molecular Conformation; D011166:Porphyrins / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D015032:Zinc / Q000737:chemistry
chemical_list: D011166:Porphyrins; D015032:Zinc