Citation: Chung, Haemi; Barron, Paul M.; Novotny, Richard W.; Son, Hyun-Tak; Hu, Chunhua; Choe, Wonyoung (2009). Structural Variation in Porphyrin Pillared Homologous Series: Influence of Distinct Coordination Centers for Pillars on Framework Topology. Crystal Growth & Design, 9, pp. 3327-.