Synthesis and structures of two new Cu(I) frameworks bearing1,3-bis(4-pyridyl)propane and inorganic linkers

Two novel metal-organic coordination polymers [Cu-2(bpp)Cl-2] (1) and [Cu-2(bpp)(2)SO4]center dot DMF center dot 3H(2)O (2) were prepared from the reactions of 1,3-bis(4-pyridyl)propane (bpp) with CuCl2 and CuSO4, respectively, which were characterized by single-crystal X-ray diffraction analysis, elemental analysis, IR spectroscopy and powder X-ray diffraction analysis. 1 features inorganic one-dimensional [Cu2Cl2] ribbons, which are linked by the bpp ligands to form a three-dimensional metal-organic framework exhibiting a 3,3,4-connected 3-nodal topology. 2 presents [Cu2SO4] inorganic dinuclear secondary building blocks which are further connected by the bpp ligands to construct a two-dimensional framework featuring flask-stacking appearance. They are typical examples of metal-organic framework constructed by the synergistic use of organic and inorganic linkers.