10.1021/cg060667i.s002 Kexuan Huang Kexuan Huang Zhengjiang Xu Zhengjiang Xu Yizhi Li Yizhi Li Hegen Zheng Hegen Zheng Guest-Induced Helical Metallacyclic Chains in a Porous Coordination Solid Constructed from a Flexible Ester-Containing Ligand American Chemical Society 2007 Porous Coordination helical metallacyclic polymer guest THF molecules helical chains THF solution oxygen atoms framework EDPC metallacyclic chains 2007-02-07 00:00:00 Dataset https://acs.figshare.com/articles/dataset/Guest_Induced_Helical_Metallacyclic_Chains_in_a_Porous_Coordination_Solid_Constructed_from_a_Flexible_Ester_Containing_Ligand/3027628 A porous metal−organic framework [Co(SCN)<sub>2</sub>(EDPC)<sub>2</sub>(H<sub>2</sub>O)<sub>3</sub>]<i><sub>n</sub></i> (<b>1</b>; EDPC = 1,2-ethanediyl di-3-pyridinecarboxylate) has been synthesized and structurally characterized. Immersing the crystals of <b>1</b> in THF solution led to the dynamic framework of <b>1</b> undergoing a crystal-to-crystal guest-exchange process to afford the helical metallacyclic polymer [Co(SCN)<sub>2</sub>(EDPC)<sub>2</sub>(THF)]<i><sub>n</sub></i> [<b>1</b>⊃<b>THF</b>]. The guest THF molecules were accommodated in the cavities of the metallacyclic chains and showed the handness of the helical chains by their oxygen atoms as probes.