Copper Complex Cation Templated Gadolinium(III)–Isophthalate Frameworks

Abstract

Crystal engineering provides a powerful tool for the design and construction of coordination frameworks with unique structural motifs and tunable physical properties.[1, 2] Many heterometallic frameworks possess interesting physical properties, [3][4][5][6][7] which arise from the interactions between two distinct metal ions. However, 3D cavity lanthanide frameworks with trapped or bonded transition-metal complexes are rare. A typical strategy utilized to construct lanthanidetransition-metal frameworks is self-assembly from mixed metal ions and ligands containing hybrid donor atoms, such as carbonyl, [8] cyanide, [9] pyridine-carboxylate ligands.

Two Novel Diamagnetic-metal Coordination Polymers of Nitronyl Nitroxide Radical Incorporating Isophthalate Bridges

“…The phenyldicarboxylates (terephthalate, isophthalate and phthalate) are versatile ligands owing to their good binding ability and the diversity of their bonding modes, as exemplified by the formation of polymeric structure systems [14][15][16][17][18][19]. Several multi-dimensional coordination polymers of metal-nitroxide radicals incorporating terephthalate bridges have been reported [20][21][22][23].…”

Synthesis and X-ray crystal structures of a series of 3d–4f lanthanide complexes: lanthanide(III)–copper(II) coordination polymers with 2,5-pyridinedicarboxylic acid ligand

“…A variety of heterometallic complexes have been reported so far; however, most of them only possess discrete molecular structures from the crystallographic viewpoint [5][6][7][8][9][10]. The assembly of extended structures with 3-D Ln-M heterometallic coordination frameworks is currently a formidable task [11,12], because the lanthanide ions have very different coordination characteristics from transition metals. Nevertheless, some infinite Ln-M metal compounds have been obtained by conventional self-assembly in solution [13,14].…”

Influence of Steric Hindrance of N‐Heterocyclic Ancillary Ligands on the Structure and Magnetic Properties of Manganese(II) Coordination Polymers

“…As typical aromatic polycarboxylate ligands, isophthalic acid and its derivatives with similar coordinated groups, that is, those with a 120°angle between two carboxylic groups, show versatile coordination modes and have been used widely to construct coordination polymers. [9] In this context, we used three N-donor ligands: 2,2Ј-bpy, phen, and dipt, which possess different steric hindrance and employed as auxiliary ligands in the self-assembly with organic carboxylic acid biphenyl-3,5-dicarboxylic acid and Mn II ions. We successfully constructed three coordination polymers: (3).…”