Structural versatility of the malonate ligand as a tool for crystal engineering in the design of molecular magnets

1D and 3D supramolecular structures exhibiting weak ferromagnetism in three Cu(II) complexes based on malonato and di-alkyl-2,2’-bipyridines

“…Among the most used bridging ligands for transition metal ions are dicarboxylate ligands [8]. In particular, malonate has been extensively used for the formation of coordination complexes [9] and coordination polymers [10]. We selected this ion-bridging ligand due to its simple chemical structure and its dual chemical functionality, which allow it to generate complexes or polymers, depending on its coordination modes [11].…”

Vibrational spectra of hydrates of some metal(II) malonates

“…The malonate ion, the dianion of 1,3-propanedioic acid, is a dicarboxylic ligand with a unique behavior, frequently used for designing complexes with desired magnetic properties [4,5]. When ligands such as 2,2 0 -bipyridine and 4,4 0 -bipyridine are used as spacers, malonate derivatives of divalent metals provide the framework for supramolecular crystal engineering [6][7][8] and formation of metal-containing supramolecules via non-covalent forces, such as hydrogen bonding and aromatic p-p stacking interactions [9].…”

A new mixed ligand coordination polymer of Mn(II): structural aspect and cryomagnetic study

“…In designing 1-, 2-and 3-dimensional coordination polymer complexes the selection of the two major components, namely connectors and linkers, are of utmost importance [7]. To make neutral metal organic frameworks (MOFs), anionic organic bridging ligands such as di-, tri-and tetra-carboxylates are widely used [8][9][10][11][12][13][14], as they exhibit various coordination modes such as monodentate terminal and bridging modes, bidentate chelating and bridging coordination [15]. In this regard, pyridine dicarboxylic acids have been shown to be interesting and versatile ligands [16,17], as they exhibit various coordination modes, and have been used to prepare a variety of structures with different dimensionalities [18,19].…”