catena-Poly[[[[N′-(4-cyanobenzylidene)nicotinohydrazide]silver(I)]-μ-[N′-4-cyanobenzylidene)nicotinohydrazide]] hexafluoridoarsenate]

In the title compound, {[Ag(C14H10N4O)(2)]AsF6}(n), the Ag-I ion is coordinated by two N atoms from two different pyridyl rings and one N atom from one carbonitrile group of three different N'-(4-cyanobenzylidene)nicotinohydrazide ligands in a distorted T-shaped geometry. The Ag-N-carbonitrile bond distance is significant longer than those of Ag-N-pyridyl. The bond angles around the Ag I atom are also not in line with those in an ideal T-shaped geometry. One type of ligand acts as the bridge that connects Ag I atoms into chains along [(1) over bar 01]. These chains are linked to each other via N-H center dot center dot center dot O hydrogen bonds and Ag center dot center dot center dot O interactions with an Ag center dot center dot center dot O separation of 2.869 (2) angstrom. In addition, the [AsF6](-) counter-anions are linked to the hydrazone groups through N-H center dot center dot center dot F hydrogen bonds. Four of the F atoms of the [AsF6](-) anion are disordered over two sets of sites with occupancies of 0.732 (9) and 0.268 (9).