Edge-directed [(M2)2L4] tetragonal metal–organic polyhedra decorated using a square paddle-wheel secondary building unit

Abstract

A general strategy was developed for edge-directed self-assembly of tetragonal metal-organic polyhedra (MOPs) having a C(4) symmetry Cu(II)(2)(COO)(4) paddle-wheel as a secondary building unit, using C(2) symmetric dicarboxylic ligands as pincer-type primary building units.

Switchable gate-opening effect in metal–organic polyhedra assemblies through solution processing

“…We prepared this ligand as a functionalised version of the ligand 3,3′-((1,3-phenylene)bis(ethyne-2,1-diyl))dibenzoic acid (LH 2 ), which has been used previously to synthesise both Cu- and Rh-lantern MOPs. 13 Compound 1 can be obtained as single crystals via reaction of Cu(OAc) 2 ·H 2 O with EtOLH 2 in DMF at room temperature, yielding the neutral complex [Cu 4 (EtOL) 4 (H 2 O) 2 (DMF) 2 ] ( 1-DMF ), or as a bulk powder by performing the reaction in DMA and forcing precipitation through addition of MeOH. The molecular structure of 1-DMF is shown in Fig.…”

Ni3 versus Ni30: A Truncated Octahedron Metal–Organic Cage Constructed with [Ni5(CN)4]6+ Squares and Tripodal Tris‐tacn Ligands That are Large and Flexible

“…The construction of metal–organic cages is realized by the self‐assembly of metal ions or metal clusters typically occupying the vertices of a discrete polyhedron and organic ligands linking them as either the edges or the faces of the polyhedron. Recent efforts have resulted in a variety of coordination cages with single metal ions, M 2 , and M 4 metal clusters acting as vertices, but cages with vertices of higher nuclearity metal clusters are very rare. On the other hand, rigid linear/bent or facial ligands with preorganized binding angles are usually required for the assembly of cages because ligands of flexible conformation and binding ability generally result in mixed coordination species .…”

Advanced functional nanomaterials with microemulsion phase

“…Porous metal-organic frameworks (MOFs) are crystalline materials composed of metal ions or clusters bridged by organic ligands [130]. These materials have shown great potential in gas storage [131], separation [132], and catalysis [133] applications owing to their permanent porosity and stability after desolvation.…”