Synthesis,Structure and Luminescent Property of a Three-dimensional Framework of Ag(I) with 4-pyridinecarboxylate

The reaction of 4-pyridinecarboxylic acid(Hpyca)and Ag2O under hydrothermal condition with 1:1 metal/ligand mole ratio leads to a three-dimensional framework of [Ag(pyca)]n·nH2O(1)with one-dimensional open square channels along the a axis.X-ray single crystal structural analysis reveals that its crystallizes in monoclinic,space group P21 /c with a=0.369 34(5),b=1.217 83(17),c=1.523 9(2)nm,β=90.100(2)°,V=0.685 44(16)nm3,Z=4,Dc=2.403 g·cm-3,F(000)=480,the final R1=0.038 9 and wR2=0.087 5 for 1 212 observed reflections with I≥2σ(I).The fluorescence spectrum of the coordination polymer exhibits intense emission at 524 nm when excited at 469 nm in solid state at room temperature.CCDC:619217.