A Large Dendritic Multiporphyrin Array as a Mimic of the Bacterial Light-Harvesting Antenna Complex: Molecular Design of an Efficient Energy Funnel for Visible Photons

✍ Scribed by Myung-Seok Choi; Takuzo Aida; Tomoko Yamazaki; Iwao Yamazaki

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 200 KB
• Volume: 40
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/1521-3773(20010903)40:17<3194::aid-anie3194>3.0.co;2-5

✦ Synopsis

π-Electronic conjugation is not necessary to facilitate long-range energy migration and transfer: A rapid (k =1.04×10 s ) and efficient (Φ =71 %) energy transfer from the 28 photoexcited zinc porphyrin units to the focal free-base porphyrin unit occurs in a large, star-shaped dendritic multiporphyrin array in which the chromophore units are linked through flexible ether groups.