David I. Schuster

B.A., Columbia University

Ph.D., California Institute of Technology

Postdoctoral Fellow, University of Wisconsin

Synthesis of new types of fullerene derivatives; synthesis of porphyrin-fullerene dyads with flexible and rigid linkers; photoadditions to C60 and C70; photophysical studies of porphyrin-fullerene dyads; topological control of electron transfer and energy transfer in porphyrin-fullerene dyads; sensitization of singlet oxygen formation by fullerenes; fullerene derivatives as inhibitors of HIV-protease and in photodynamic therapy

Professor Schuster has terminated active research and closed his laboratory in 2012. Recent work focused on the synthesis of nanoscale electron donor-acceptor systems with potential applications in solar energy storage devices, in which porphyrin and C60 moieties are covalently or mechanically linked, as in rotaxanes and catenanes. Study of their electrochemical and photophysical properties is carried out with outside collaborators. Photoexcitation of these materials in polar organic solvents results in extremely fast electron transfer on the subnanosecond time scale to yield relatively long-lived charge separated radical ion pair (CSRP) states. CSRP lifetimes of microseconds have been achieved, and even longer lifetimes are anticipated for systems currently under study. Photophysical studies on new materials made in the Schuster lab are ongoing in the laboratory of Professor Dirk Guldi in Erlangen, Germany.

Megiatto, J. D, Jr.; Schuster, D. I.  "Introduction of useful peripheral functional groups on [2]catenanes by combining Cu(I) template synthesis and "click" chemistry," New J. Chem. 2010, 34, 276-286.

Megiatto, J. D, Jr.; Schuster, D. I.;, Palkar, A.; Herranz, M. A.;   Echegoyen, L.;   Abwandner, S.; G. de Miguel, G.; Guldi, D. M. "Convergent Synthesis and Photoinduced Processes in Multi-Chromophoric Rotaxanes," J. Phys. Chem. B 2010, 114, 14408-14419.

Megiatto, J. D, Jr.; Spencer, R.; Schuster, D. I. "Optimizing Reaction Conditions for Synthesis of Electron Donor-[60]Fullerene Interlocked Multiring Systems," J. Mat. Chem. 2011, 21, 1544-1550.

Megiatto, J. D, Jr.; Schuster, D. I. "Alternative Method for Demetalation of Cu(I)-Phenanthroline-Based Catenanes and Rotaxanes," Org. Lett.  2011, 13, 1808-1811.

Jakob, M.; Berg, A.; Levanon, H.; Schuster, D. I.; Megiatto, J. D., Jr. "Photoexcited State Properties of H2-Porphyrin-C60- Based Rotaxanes as Studied by Time-Resolved EPR Spectroscopy," J. Phys. Chem. A. 2011, 115, 5044-5052.

Megiatto, J. D, Jr.; Schuster, D. I. "Synthesis of Electron Donor-[60]Fullerene Multi-Ring Interlocked Systems', in Fundamentals and Application of Carbon Nano Materials, Volume 1. Synthesis and Supramolecular Systems, ed. D'Souza, F.; Kadish, Karl M., World Scientific Press, 2011, pp. 207-244.

Megiatto, J. D., Jr.; Schuster, D. I. "Interlocked Artificial Photosynthesis Models Composed of Electron donor and [60]Fullerene Units", in Fullerenes - Principles and Applications", ed. Langa, F.; Nierengarten, J.-F., Royal Society of Chemistry, 2011, pp. 354-385.

de Miguel, G.; Wielopolski, M.; Schuster, D. I.; Fazio, M. A.; Lee, O. P.; Haley, C. K.; Ortiz, A. L.; Echegoyen, L.; Clark, T.; Guldi, D. M. "Triazole Bridges as Versatile Linkers in Electron Donor-Acceptor Conjugates", J. Am. Chem. Soc. 2011, 133, 13036-13054.

Megiatto, J. D., Jr.; Schuster, D. I.;* de Miguel, Gustavo; Wolfrum, S and Guldi, D. “Topological and Conformational Effects on Electron Transfer Dynamics in Porphyrin-[60]Fullerene Interlocked Systems”, Chem. Mat. 2012, 24, 2472-2485.

Schuster, D. I.; “Obituary of Howard E. Zimmerman”, Angew. Chem. Int. Ed. 2012, 51, 5286-5288.

Turro, N. J.; Li, Y.; Jockusch, S.; Hagiwara, Y.; Okazaki, M.; Mesch, R. A.; Schuster, D. I.; Willson, C. G. “Study of as Two-Stage Photobase Generator for Photolithiography in Microelectronics”,  J. Org. Chem. 2013, 78, 1735-1741.

D. I. Schuster, “Reflections on a Fifty-Year Career in Organic Photochemistry: a Personal Perspective”, J. Org. Chem., 2013, 78, 6811-684.

Kirner, S. V.: Guldi, D. M.; Megiattor, J. D., Jr.; Schuster, D. I. “Synthesis and photophysical properties of new catenated electron donor-acceptor materials with Magnesium and free base porphyrins as donor and C60 as the acceptor”, Nanoscale 2015, 7, 1145-1160.

Kirner, S. V.; Guldi, D. M.; Henkel, C.; Megiatto, J. D., Jr.; Schuster. D. I. “Multistep Energy and Electron Transfer Processes in Novel Rotaxdane Donor-Acceptor Hybrids Generating Microsecond Lived Charge Separated States”, Chemical Science, submitted for publication.