A self-assembled light-harvesting array of seven porphyrins in a wheel andspoke architecture

Authors
Ambroise, A Li, JZ Yu, LH Lindsey, JS
Citation
A. Ambroise et al., A self-assembled light-harvesting array of seven porphyrins in a wheel andspoke architecture, ORG LETT, 2(17), 2000, pp. 2563-2566
Citations number
18
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANIC LETTERS
ISSN journal
15237060 → ACNP
Volume
2
Issue
17
Year of publication
2000
Pages
2563 - 2566
Database
ISI
SICI code
1523-7060(20000824)2:17<2563:ASLAOS>2.0.ZU;2-Z
Abstract
[GRAPHICS] A shape persistent cyclic array of six zinc porphyrins provides an effectiv e host for a dipyridyl-substituted free base porphyrin, yielding a self-ass embled structure for studies of light harvesting. Energy transfer occurs es sentially quantitatively from uncoordinated to pyridyl-coordinated zinc por phyrins in the cyclic array. Energy transfer from the coordinated zinc porp hyrin to the guest free base porphyrin is less efficient (Phi(trans) simila r to 40%) and is attributed to a Forster through space process.