catena-Poly[[silver(I)-μ-4-aminopyridine] perchlorate]: a 1-D staircase coordination polymer

Abstract

Reaction of 4-amino­pyridine with silver(I) perchlorate leads to a one-dimensional coordination polymer, {[Ag(C5H6N2)]ClO4}n, in which the amino­pyridine binds through both N atoms. The perchlorate anion is hydrogen bonded to the amino H atoms and inter­acts weakly with the silver(I) atoms (Ag—O > 2.70 Å), both located on inversion centres, and some aromatic H atoms (O—H > 2.55 ÅA), thereby extending the dimensionality of the assembly. This is the first silver complex in which this ligand acts in a bridging mode.

Homoconjugated 4-aminopyridine salts: influence of anions on network topology

“…40,41 There are several reports of hydrogen bonded networks based on [Ag(4-AP) 2 ]. 35,[42][43][44][45][46][47] These include both lamellar and three-dimensional examples. A notable difference between the homoconjugated dimers and the silver complexes is that the pyridine rings in the silver complexes are often nearly coplanar.…”

Bis(2-acetylpyridine-κ2N,O)silver(I) tetrafluoridoborate: a complex with silver in a seesaw coordination geometry

“…For other silver complexes with the same ligand, see: Bowmaker et al (2005); Drew et al (2005); Di Nicola et al (2010). For examples of our previous work on silver complexes, see: Steel (2005); Fitchett & Steel (2006); O'Keefe & Steel (2007); Steel & Fitchett (2008); Golder et al (2010). For details of the coordination geometry of four-coordinate silver, see: Young & Hanton (2008).…”

“…For some time we have been involved in the study of silver complexes of chelating and bridging heterocyclic ligands (Steel, 2005;Fitchett & Steel, 2006;O′Keefe & Steel, 2007;Steel & Fitchett, 2008;Golder et al, 2010). 2-acetylpyridine coordinates to a variety of transition metals, usually as an N,O-chelating ligand, although it has been reported to act as an O-monodentate donor to a zinc porphyrin (Byrn et al, 1993).…”

Synthesis, Characterization and Antibacterial Properties of Complex [Ag(SCN)(2-NH2py)]

“…Complexes with 2-,3-or 4-NH2py ligands show that NH2py tends to act as a monodentate ligand by binding to the central atom via the N pyridine ring. Complexes that have been reported such as [Ni(NCS)2(2-NH2py)2.C4H10O] [7], {∞[Cd(µ-SCN)2(4-NH2py)2]} [8], [Cu(SCN)2(x-NH2py)2] (x=2,3, or 4) [4], and [M(3-NH2py)2(dca)2] (M=Mn2+, Cu2+,Cd2+, or Co2+; dca = dicyanamide) [1,[9][10][11], [AgL(x-NH2py)2] [12][13][14][15][16] demonstrated the formation of polymer complexes via bridge formation by bidentate ligands such as dicyanamide, thiocyanate and azide. Several other complexes with monodentate ligands such as Cl¬ such as…”

“…The development of silver(I) complex compounds with pyridine and its derivatives has become an interesting topic because their structures allow them to form monomers, dimers and even polymers, as well as their biological activity which are quite extensive. Silver complexes with 2,3 and 4 aminopyridines have been reported to form complexes with various geometries such as, linear [12,13,16,21], trigonal geometry [15,21,22], square-planar geometry [23], tetrahedral [24] and etc. In general, the aminopyridines are bonded to central ions through the N atoms of the pyridine ring, but Golder et al, 2010 showed the formation of 1-dimensional polymers through 4aminopyridine bridge ligand in their complex.…”