Citation: Katsuo Fukuhara; Shin-ichiro Noro; Kunihisa Sugimoto; Tomoyuki Akutagawa; Kazuya Kubo; Takayoshi Nakamura (2013). Porous Coordination Polymer Polymorphs with Different Flexible Pores Using a Structurally Flexible and Bent 1,3-Bis(4-pyridyl)propane Ligand. Inorganic Chemistry, 52, pp. 4229-4237.