1. Center for Macromolecular Engineering, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213; Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213; Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213; GE Corporate R&D Center, Schenectady, New York 12301; Institut für Anorganische Chemie, Technische Universität Wien, Getreidemarkt 9, 1060 Wien, Austria; and Max-Planck Institute for...