Synthesis,Crystal Structure and Luminescence of a Novel One-dimensional Silver（Ⅰ）Sulfonate Complex with Pyrazine Ligand

The title complex,Ag 2 (L1) 2 (Pyr)·2.5H 2 O] 1 (L1=6-amino-1-naphthalenesulfonate anion,Pyr=pyrazine),has been synthesized and characterized by single-crystal X-ray diffraction analysis.It crystallizes in triclinic,space group P1,with a=7.339(5),b=13.105(5),c=14.097(5),α=84.377(5),β=76.921(5),γ=79.628(5)°,V=1296.7(11) 3,C 48 H 50 Ag 4 N 8 O 17 S 4,M r=1570.68,Z=1,D c=2.011 g/cm 3,μ=1.732 mm-1,F(000)=782,S=1.148,the final R=0.0436 and wR=0.1181 for 4130 observer reflections (I > 2σ(Ⅰ)).Compound 1 shows a rare one-dimensional (1D) double chain,and the chains are further connected through secondary bonding,hydrogen bonds,and π-π interactions to generate a three-dimensional (3D) supramolecular structure.The luminescent property of 1 was also studied in the solid state at room temperture.