A novel 1D independent metal–organic nanotube based on cyclotriveratrylene ligand

Abstract

A novel nanotubular metal–organic framework [Cu₃L₂(EtOH)(Py)₂(H₂O)₂]·9DEF·8H₂O (CTV-Cu) was prepared by assembly of the rigid, trigonal pyramidal ligand tri-(4-carboxy-phenyl)-trimethoxycyclobenzylene (H₃3L) and Cu(NO₃)₂·3H₂O viasolvothermal reaction. The Cu(II) ions in the crystal serve as square and linear molecular building blocks, thus forming a framework with ternary topology. One single open-ended nanotube contains two identical orthogonally interpenetrated two-nodal nets. This framework exhibits permanent microporosity and relatively high surface area.