ions on special positions. Each NiII ion adopts an elongated octahedral [NiN2O4] geometry. Each NiII ion as a 4‐connected node is linked by L− ligands to generate a two‐dimensional network with an sql topology, which is further stabilized by two types of intermolecular OW—HW…Ohydrogen bonds to form a 3D supramolecular framework. MOFs (1)–(3) were also characterized by powderX‐ray diffraction, IR
Unprecedented three-dimensional hydrogen-bonded hex topological chiral lanthanide–organic frameworks built from an achiral ligand
作者:Tao Qin、Zhe Feng、Jie Yang、Xuan Shen、Dunru Zhu
DOI:10.1107/s205322961801313x
日期:2018.11.1
geometry. A one‐dimensional neutral helical [Ln2(CO2)3]n chain is observed in (1)–(4) as a chiral origin. These helicalchains are further interconnected via directional hydrogen‐bonding interactions between pyridyl groups and water molecules to construct a three‐dimensional (3D) homochiral network with hex topology. The present CMOF structure is the first chiral 3D hydrogen‐bonded hex‐net and shows