Preparation of silver nanostructures from a new benzopyrazine silver(I) nitrate coordination polymer

A new two-dimensional silver(I) coordination polymer, [Ag(Quinoxaline)(NO3)]n (1); Quinoxaline = Benzopyrazine, has been synthesized and characterized by IR and 1H NMR spectroscopy. Silver nanorods were synthesized by calcination of compound 1 at 600 °C under air atmosphere. Also, silver nanopowders and silver spongy nanostructures were synthesized by calcination at 400 and 500 °C and sol–gel methods. The silver nanostructures were characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and energy-dispersive X-ray (EDAX). The thermal stability of compound 1 was studied by thermal gravimetric (TG) and differential thermal analyses (DTA).