Acetonitrile-Templated Assembly of a Laminar Silver(I) Phthalate Coordination Polymer

A novel infinite 2D silver(I) phthalate coordination polymer (CP), {CH3CNC [Ag-2(pta)](4)center dot CH3CN}(w) (1, H(2)pta = phthalic acid) was synthesized and characterized. The flowerpot-shaped cavity in the sheet accommodates a linear acetonitrite molecule through quadruplex Ag center dot center dot center dot N-acetonitrile interaction. Using H2O as a solvent in the same preparative procedure, another silver(I) phthalate CP 2, {[Ag-2(pta) (H2O)]), was isolated. Complex 2 is also a 2D sheet but does not include any solvent-occupied cavity. A comparative experiment shows that the acetonitrile acts as a template for the sheet formation. Moreover, the TGA and photoluminescence spectra of 1 and 2 were discussed.