Anion Influence on Supramolecular Interactions in Exo-Coordinated Silver(I) Complexes with N2O2 Schiff Base Macrocycle

Silver(I) complexes with aza-oxa macrocyclic Schiff bases L (L = 1,5-diaza-2,4:7,8:16,17-tribenzo-9,15-dioxa-cyclooctadeca-1,5-dien) were prepared by the reaction of corresponding macrocycle four different silver salts (AgX; X ClO4, PF6, SbF6 and BF4). In all compounds, ions are exo-coordinated two neighboring ligand molecules in linear T-shaped geometries. Such a coordination mode results formation infinite 1D polymeric chains. Compounds AgLClO4 AgLBF4 isostructural, chains display zigzag topology. AgLPF6 there three symmetrically unique Ag asymmetric unit compound. Two linearly coordinated part discrete polymer chain. The third ion is methanol molecule geometry. geometry crystal structure. AgLSbF6 compound, chain topology chain, but this difference orientation Ag-N bond. Ag-N-Ag bonds trans position relative to plane calculated through molecule, while cis other compounds. Due presence bulky anion, planar compared Considering intermolecular interactions, huge variety mostly depending on type anion. A general supramolecular motif compounds best described as 2D sheets ligand–metal polymers anions solvent sandwiched between them. addition, obtained characterized IR spectroscopy thermal analysis. TG analysis indicates rather surprising considerable stability some thermally stable over 300 °C.