Citation: Sandipan Dawn; Mahender B. Dewal; David Sobransingh; Monissa C. Paderes; Arief C. Wibowo; Mark D. Smith; Jeanette A. Krause; Perry J. Pellechia; Linda S. Shimizu (2011). Self-Assembled Phenylethynylene Bis-urea Macrocycles Facilitate the Selective Photodimerization of Coumarin. Journal of the American Chemical Society, 133, pp. 7025-7032.