摘要

Seven coordination polymers (CPs) based on a new multidentate di-2-pyrazinylsulfide (DpzS) ligand and various anions, namely {[Ag-3(DpzS)(2)(ClO4)(2)](ClO4)}(infinity) (1), [Ag-3(DpzS)(2)(CF3SO3)(3)](infinity) (2), {[Ag-3(DpzS)(2)(CF3SO3)(H2O)(2)](CF3SO3)(2)center dot H2O}(infinity) (3), [Ag-2(DpzS)(NO3)(2)(H2O)](infinity) (4), [Ag(DpzS)(NO2)](infinity) (5), [Ag-2(DpzS)(NO2)(2)](infinity) (6) and [Ag-2(DpzS)(C2F5CO2)(2)](infinity) (7), have been synthesized and fully characterized by IR spectroscopy, elemental analyses, single crystal X-ray diffraction and powder X-ray diffraction. In 1-7, the DpzS ligand exhibits diverse coordination modes with various silver(I) salts, yielding fascinating 2-D and 3-D topological frameworks. The effect of the anion, such as the size and geometry, on the structural diversities of 1-7 has been discussed. In addition, the role played by anion-pi(pyrazinyl) interaction in the supramolecular assembly of 1-7 has also been studied.