Novel three-dimensional coordination polymer of 2-(1,3,5-tri-aza-7-phospho-niatri-cyclo-[3.3.1.1 3,7 ]decan-7-yl)ethanoic acid with silver(I) tetra-fluoro-borate.

An Ag I -based coordination polymer (CP), namely, poly[[[μ 3 -2-(1,3,5-tri-aza-7-phospho-niatri-cyclo-[3.3.1.1 3,7 ]decan-7-yl)ethano-ate-κ 4 N : N ': O , O ']silver(I)] tetra-fluoro-borate], {[Ag(C 9 H 16 N 3 O 2 P)]BF 4 } n , was synthesized in an aqueous solution of zwitterionic 2-(1,3,5-tri-aza-7-phospho-niatri-cyclo-[3.3.1.1 3,7 ]decan-7-yl)ethan-o-ate ( L ) and AgBF 4 with exclusion of light at room temperature. The colourless and light-insensitive CP crystallized in the monoclinic space group Cc . The asymmetric unit consists of an Ag I cation, the zwitterionic L ligand and a BF 4 - counter-ion. Each Ag I ion is coordinated by two carboxyl-ate oxygen atoms in a chelating coordination mode, as well as one of the nitro-gen atoms of two neighbouring L ligands. The crystal structure of the CP was classified as a unique three-dimensional arrangement. The CP was also characterized in aqueous solutions by multinuclear NMR and HRMS spectroscopies and elemental analysis.