Six　novel　silver(I)　complexes　with　diphosphine　ligands,　namely　[Ag-2(mu-dppm)(2)(phen)(2)](NO3)(2)　(1),　{[AR(2)(dPPm)(2)(mu-bPP)](ClO4)(2)}(n)　(2),　[Ag-4(dPPm)(4)(mu-dpe)(CH3CN)(2)](BF4)(4　center　dot)(H2O)center　dot(CH3CN)　(3),　{[Ag(mu-dppe)(dicnq)](BF4)center　dot(DMF)}(n)　(4),　{[Ag(mu-dppe)(dmapym)](BF4)}(n)　(5)　and　{[Ag(mu-dppb)(phen)]　(BF4)center　dot(CH3CN)}(n)　(7)　(dppm　=　bis(diphenylphosphino)methane,　dppe　=　1,2-bis(diphenylphosphino)ethane,　dppb　=　1,4-bis(diphenylphosphino)butane,　phen　=　1,10-phenanthroline,　bpp　=　1,3-bis(4-pyridyl)propane,　dpe　=　1,2-di(4-pyridyl)ethene,　dicnq　=　6,7-dicyanodipyridoquinoxaline,　dmapym　=　2-amino-4,6-dimethylpyrimidine),　were　characterized　by　X-ray　diffraction,　IR,　H-1　NMR　and　fluorescence　spectra.　These　complexes　have　been　synthesized　by　the　reactions　of　silver　salts,　diphosphine　ligands　and　various　N-donor　ligands　in　different　solvents.　The　complex　[Ag-2(mu-dppb)(2)](BF4)(2)　(6)　has　been　reported　in　a　previous　study　and　complex　7　was　prepared　by　a　ring-opening　reaction　using　complex　6　as　a　precursor.　H-1　NMR　spectroscopy　and　fluorescence　spectra　of　complex　6　were　also　measured.　Complexes　1　and　6　are　dinuclear　complexes　with　an　[Ag-2(mu-PP)(2)](2+)　ring　bridged　by　diphosphine　ligands.　In　complexes　2,.4,　5　and　7,　the　Ag　ions　are　bridged　by　ligands　(bpp,　dppe　and　dppb,　respectively)　to　form　1D　infinite　chain　structures.　In　particular,　the　[Ag-2(dppm)(2)](2+)　units　of　complex　2　are　linked　by　the　bpp　ligand　rather　than　the　diphosphine　ligands.　Strikingly,　complex　5　displays　a　2D　＂honeycomb＂　(6,3)　network　structure　formed　through　hydrogen　bonds.　Complex　3　consists　of　a　tetranuclear　structure　where　the　two　[Ag-2(mu-dppm)(2)(CH3CN)](2+)　moieties　are　linked　by　a　dpe　ligand　in　bidentate-bridging　fashion.　All　the　emission　peaks　of　these　complexes　are　attributed　to　ligand-centered　[pi-pi*]　transitions.　(C)　2016　Elsevier　Ltd.　All　rights　reserved.