A Novel Two-Dimensional Silver(I) Saccharinato Coordination Polymer Constructed from Weak Ag⋯C Interactions: Synthesis, IR Spectra and X-Ray Structure

Abstract

A new dinuclear silver(I)-saccharinato (sac) complex with acetonitrile (MeCN), [Ag<inf>2</inf>(sac)<inf>2</inf>(MeCN)<inf>2</inf>]<inf>n</inf> has been synthesized and characterized by elemental analysis, IR spectroscopy and single crystal X-ray diffraction. The silver(I) ions are doubly bridged by two sac ligands, leading to a short argentophilic contact of 2.9074(3) Å. Each silver(I) ion exhibits a square-planar coordination geometry including the Ag-Ag bonds. The individual dimeric molecules are extended into a two-dimensional layered structure by weak Ag⋯C<inf>sac</inf> (η2) interactions of ca. 3.2 Å. These interactions were discussed and compared with those found in the first silver(I)-sac complex [Ag(sac)]<inf>n</inf>. © 2008 Elsevier B.V. All rights reserved.