1Department of Chemistry, University of Zanjan, P.O. Box 313-45195, Zanjan, I.R. IRAN
2Group of Molecular Inorganic Chemistry, CNRS, No. 7513, University of Louis Pasteur, Strasbourg, FRANCE
Siilver tetrafluoroborate complex of 188.8.131.52-tetra-tert-butyl-25-26,27,28-tetrakis (diphenylphosphinoylmethoxy)calyxarene (L) has been synthesized by reaction of silver tetrafluoroborate and L in dichloromethane at room temperature. The complex formed has a 1:1 metall/ligand ratio. 1H and 31P NMR data support an encapsulated structure of the complex in which silver ion is located inside the hydrophilic cavity of the ligand.