The　reaction　of　the　dithioether　ligand,　2,3-bis(pyrimidine-2-thiomethyl)quinoxaline　(L)　with　AgNO(3),　leads　to　the　formation　of　a　novel　complex　{[Ag(5)(L)(2)(NO(3))(4)](NO(3))(CHCl(3))(2)}n　1,　which　has　been　characterized　by　single-crystal　X-ray　diffraction　analysis:　monoclinic,　space　group　C2/c,　with　a　=　34.741(7),　b　=　9.930(2),　c　=　17.004(4)　angstrom,　beta　=　106.497(6)degrees　and　V　=　5625(2)　angstrom(3).Complex　1　consists　of　2D　{[Ag(5)(L)(2)(NO(3))(4)](+)}n　cations,　uncoordinated　NO(3)(-)　anions　and　CHCl(3)　solvent　molecules.　In　1,　there　exist　three　crystallographic　independent　Ag(I)　centers,　which　adopt　different　coordination　geometries.　There　exist　pi-pi　stacking　interactions　in　the　complex　and　these　weak　interactions　further　stabilize　the　crystal　structure　in　the　solid　state.　The　coordination　feature　of　the　ligand　has　been　investigated　by　DFT　calculations.