Novel three-dimensional coordination polymer of 2-(1,3,5-triaza-7-phosphoniatricyclo[3.3.1.1 3,7 ]decan-7-yl)ethanoic acid with silver(I) tetrafluoroborate

• Published in: Acta crystallographica. Section E, Crystallographic communications Vol. 78; no. 3; pp. 251 - 254
• Main Authors: Udvardy, Antal, Kathó, Ágnes, Papp, Gábor, Joó, Ferenc, Gál, Gyula Tamás
• Format: Journal Article
• Language: English
• Published: International Union of Crystallography 01.03.2022
• Subjects: coordination polymer; crystal structure; phosphabetaine; silver; tetrafluoroborate
• ISSN: 2056-9890; 2056-9890
• DOI: 10.1107/S2056989022000767

An Ag I -based coordination polymer (CP), namely, poly[[[μ 3 -2-(1,3,5-triaza-7-phosphoniatricyclo[3.3.1.1 3,7 ]decan-7-yl)ethanoate-κ 4 N : N ′: O , O ′]silver(I)] tetrafluoroborate], {[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-triaza-7-phosphoniatricyclo[3.3.1.1 3,7 ]decan-7-yl)ethanoate ( 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 carboxylate oxygen atoms in a chelating coordination mode, as well as one of the nitrogen 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.