Infinite Three-Dimensional Coordination Polymers: Synthesis and Structures of Cd (4,4'-bpy)_2 (H_2O)_2_n (pic)_(2n),Zn (4,4'-bpy)_2 (H_2O)_2_n(pic)_(2n) (H_2O)_(2n), and Zn (4,4'-bpy)_2 (H_2O)_2_n (4,4'-bpy)_n(H_2O)_n (pic)_(2n)

摘要

Three Complexes of the formula [Cd （4,4’-bpy）2 （H2O）2]n. （pic）2n （1） [Zn （4,4’-bpy）2 （H2O）]n （4,4’-bpy）n（H2O）n （pic）-（2n） （2） and [Zn （4,4’-bpy）2 （H2O）]n （4,4’-bpy）n （pic）-（2n）（H2O）n （3） （4.4’-bpy = 4.4’-bipyridine. pic = picric anion ） have been synthesized and characterized by elemental analysis and single-crystal x-ray diffraction. They all have infinite three-dimensional network structure. crystallizing in the monoclinic space group C2/c （1） and Cc （2.3）.