Polymer-Induced Heteronucleation for the Discovery of New Extended Solids This work was supported by the U.S. Department of Energy and the Beckman Foundation. A.L.G. was a fellow of the NSF-sponsored IGERT program for Molecularly Designed Electronic, Photonic, and Nanostructured Materials at the University of Michigan.

The assembly of components from solution into the solid state can be accomplished in numerous manners, and each of these pathways can give rise to unique materials. The effects of the assembly pathway can be relatively subtle, as in the crystallization of pharmaceuticals into polymorphic crystals, or more dramatic, involving changes in strong bonding, as is often encountered in the preparation of extended solids. In general, there is no explicit...