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Nathaniel Rosi '99 lectured in the Department of Chemistry thanks to the Alumni in the Classroom program. Rosi's visit included two days with Professor of chemistry Martin Minelli's CHM-423 Advanced Inorganic Chemistry course, lunch with the CHM-423 students, dinner with chemistry faculty, a presentation during the weekly chemistry seminar, and a side trip to Pella and the Neil Smith Wildlife Preserve. During class, Rosi showed a crystal structure of one of his large clusters, which was best viewed with 3D glasses.

Rosi is professor of chemistry at the University of Pittsburgh, where his research focuses on developing methods for controlling the structure and function of nanoscale materials. His seminar talk was titled "Building Structural and Functional Heterogeneity into Mesoporous Metal-Organic Frameworks."