Combination of weak covalent, hydrogen bonding, and Ag⋯π interactions in the formation of a 3D porous network Ag(pypd)2(ClO4)·CH2Cl2 by the ambidentate ligand 1-(4′-pyridyl)pyridin-4-one

catena-Poly[[silver(I)-μ-1,3-bis(4-pyridyl)propane] hemi(naphthalene-1,5-disulfonate) dihydrate]: a three-dimensional metallo-supramolecular sandwich lamellar network

“…The hydrogen bond is undoubtedly the most familiar secondary force in supramolecular assemblies, due to its moderately directional intermolecular interaction which may control molecular packing (Zartilas et al, 2007), and many studies have focused on it (Lough et al, 2000;Massoud & Langer, 2009). Compared with hydrogen bonds,and metal-metal interactions have been somewhat less studied, and only limited examples generated by a combination of multi-supramolecular interactions have been reported (Goodgame et al, 2002). The naphthalene-1,5-disulfonate anion (nds 2À ), which possesses six O atoms, has been employed either as a ligand, with multiple binding sites available to construct coordination polymers with varying dimensionalities (Cai, 2004;Lian et al, 2007), or as a counter-ion, forming extensive hydrogen-bonding interactions with other species (Sakwa & Wheeler, 2003;Voogt & Blanch, 2005).…”

Ammine(2,2′-bipyridine-κ2N,N′)silver(I) nitrate: a dimer formed by π–π stacking and ligand-unsupported Ag...Ag interactions

“…However, the factors that govern the formation of such complexes are complicated and include not only the inherent properties of metal ions and ligand structure, but also anion-directed interactions and reaction conditions (Bu et al, 2003;Kong et al, 2008Kong et al, , 2009. In addition to covalent bonds, noncovalent interactions, such as AgÁ Á ÁAg, -, hydrogen-bond and cationÁ Á Á interactions, also play important roles in controlling molecular packing (Pedireddi et al, 1996;Kolotuchin et al, 1995;Li et al, 2006;Sun et al, 2003;Lough et al, 2000;Massoud & Langer, 2009;Goodgame et al, 2002). Because the central C-C bond of bipyridine (bipy) can rotate freely, bipy cannot just be regarded as a chelating ligand (Kaes et al, 2000;, but also as a potential spacer between metal centers by acting as a bridging ligand with an anti configuration (Yu et al, 2007;Fornié s et al, 1993).…”

catena-Poly[bis[silver(I)-μ2-4,4′-bipyridine-κ2N:N′] naphthalene-2,6-dicarboxylate tetrahydrate]: self-assembly of a supramolecular frameworkviacoordination bonds and supramolecular interactions

“…Doubtless, the hydrogen bond is the most familiar secondary force in supramolecular assembly, since it is a moderately directional intermolecular interaction that may control molecular packing (Kolotuchin et al, 1995;Zartilas et al, 2007), and many reports have focused on studies of the hydrogen bond (Li et al, 2006;Sun et al, 2003;Lough et al, 2000;Massoud & Langer, 2009). Compared with the hydrogen bond, C-HÁ Á Á andinteractions have been somewhat less well covered (Blake et al, 2000;Goodgame et al, 2002). 4,4 0 -Bipyridine (bipy) and its analogues are neutral linear ligands widely used as spacers in the construction of novel supramolecular compounds incorporating diverse supramolecular interactions (Wang & Englert, 2007;Withersby et al, 1997).…”