Trigonal prism or octahedron: the conformational change of a dendritic six-node ligand in MOFs

A new dendritic aromatic six-node ligand has been used to construct a MOF. It takes an octahedral and trigonal prismatic conformation in JUC-103 and JUC-104, respectively. JUC-103 exhibits high ethane uptake and has the separation ability for ethane to nitrogen. JUC-104 has an unusual (6,12)-connected CaSi2 topology.