Xian‐Jiang Wang

Clear Ag-Ag bonds in three silver(I) carboxylate complexes with high cytotoxicity properties

Abstract The reaction of Ag2O and carboxylate ligands in ammonium solution results in three coordination polymers, [Ag(fbc)]n 1, [Ag2(cpd)]n 2 and [Ag2(idc)]n 3, where fbcH is 4-fluorobenzoic acid, cpdH2 is cyclopentane-1,1-dicarboxylic acid and idcH2 is iminodiacetic acid. The X-ray crystal structural analysis indicates that compounds 1 and 2 are two-dimensional frameworks and 3 is a three-dimensional framework. All the three complexes show clear Ag–Ag bonds and high cytotoxicity properties to normal cells and carcinoma cells.

Bis(2-amino­pyridine-κN1)(benzoato-κO)silver(I)

In the title compound, [Ag(C(7)H(5)O(2))(C(5)H(6)N(2))(2)], the Ag(I) atom is tricoordinated by two independent pyridine N atoms and one benzoate O atom in a nearly planar geometry. An intramolecular N-H.O hydrogen bond forms an S(8) graph ring. The packing is built from molecular layers stabilized by two types of N-H.O hydrogen bond. Intermolecular Ag.N and intramolecular Ag.O contacts were also observed, together with three weak intermolecular C-H.pi interactions.