Monday, May 19, 2008
Student Union Building, Upper (Queensborough Community College)
326

Porphyrinoid Derivatives and Fullerene C60 for Light Harvesting Materials

Alessandro Varotto, Charles Drain, and Joao Tome. Hunter College and Graduate Center of the City University of New York, New York, NY

Porphyrin and phthalocyanine derivatives are promising building blocks for the fabrication of inexpensive light harvesting materials. Porphyrins exhibit a strong absorption in the blue region of the visible spectrum, whereas phthalocyanines absorb strongly in the red. Additionally, porphyrins and pthalocyanines can form long lived separated states complexes with C60, thanks to the small reorganization energy of the latter. We herein describe the synthesis of a heterodyad which contains a porphyrin and a pthalocyanine to capture the breadth of the solar spectrum. This dyad is a supramolecular host for fullerene C60 and can form a donor-acceptor charge transfer triad useful in the conversion of solar energy