Synthesis,Crystal Structure and Characterization of a One-Dimensional Ag(I) Coordination Polymer Based on Bis(imidazole) Ligand

A complex,[Ag(1,2-bix)]·HL(1)(H2L=4,4′-azodibenzoic acid and 1,2-bix=1,2-bis(imidazole-1-ylmethyl)benzene) has been hydrothermally synthesized and characterized by elemental analysis,IR and single-crystal X-ray diffraction.It crystallizes in triclinic system,space group P1 with a=0.937 80(5) nm,b=1.119 91(16) nm,c=1.356 36(10) nm,α=102.923(8)°,β=91.751(5)°,γ=110.792(10)°,V=1.288 5(2) nm3,Z=2,C28H23AgN6O4,Mr=615.39,Dc=1.586 g·cm-3,F(000)=624,μ(Mo Kα)=0.829 mm-1,R=0.040 7 and wR=0.102 0.In this compound,the 1,2-bix ligands bridge the neighboring Ag(Ⅰ) atoms to generate a one-dimensional chain structure with the Ag…Ag separation of 1.356 4 nm.The neighboring HL ligands form another type of one-dimensional chain through O-H…O hydrogen bond.Interestingly,the two types of one-dimensional chains extend each other in vertical modes.In addition,the luminescent property of 1 has been studied in detail.