Synthesis and Structural Characterization of a Coordination Polymer of Silver(I) with Saccharinate and Nicotinamide

Abstract

A silver(I)-saccharinato (sac) complex with nicotinamide (nia), [Ag(sac)(nia)] <inf>n</inf> has been synthesized and characterized by elemental analysis, IR spectroscopy, DTA-TG analyses and single crystal X-ray diffractometry. The complex crystallizes in monoclinic space group P2 <inf>1</inf>/n with unit cell parameters of a=7.0258(4) Å, b=24.3784(10) Å, c=8.4301(5) Å, β=109.407(5)°, V=1361.85(13) Å3 and Z=4. [Ag(sac)(nia)] <inf>n</inf> contains [Ag(sac)(nia)] units, which are doubly bridged by both nia and sac ligands, leading to a linear one-dimensional polymeric chains running along the a axis. The silver(I) ion has a highly distorted AgN<inf>2</inf>O<inf>2</inf> tetrahedral geometry and the coordination polymer exhibits relatively short intra-chain ligand supported Ag•••Ag separations of 3.1593(4) Å. The one-dimensional chains are crosslinked by N-H•••O hydrogen bonds and aromatic π(sac)•••π(nia) stacking interactions to generate a two-dimensional layer structure. IR spectra and thermal analysis data are in agreement with the crystal structure. © Springer Science+Business Media, Inc. 2006.