We thank Greg Jamison and Timothy Long for their work in developing the synthetic routes for the spirobenzopyran compounds, and Alex Jerez for helping prepare the 3D renderings in Maya. This work has been carried out within the Microscopy Suite and the Visualization, Imaging, and Media Laboratory at the Beckman Institute for Advanced Science and Technology at the University of Illinois at Urbana-Champaign (UIUC) and within Sandia National Laboratories, Albuquerque, New Mexico. The UIUC component of this work is supported by the US Department of Energy, Division of Materials Sciences, under Award no. DE-FG02-07ER46471, through the Frederick Seitz Materials Research Laboratory at UIUC. Sandia funding was derived from the Center for Integrated Nanotechnology (CINT) and Sandia National Laboratory LDRD Program. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Supporting Information is available online from Wiley InterScience or from the author.