Organophosphine/phosphite-stabilized silver(I) complexes bearing N-acetylbenzamide ligand: synthesis, characterization and potential application in metal organic chemical vapor deposition

摘要

New N-silver(I) acetylbenzamide complexes of type L_nAgNC₉H₈O₂ (L?=?PPh₃; n?=?1, 2a; n?=?2, 2b; n?=?3, 2c; L?=?P(OEt)₃; n?=?1, 2d; n?=?2, 2e; n?=?3, 2f) were prepared. These complexes were obtained in high yields and characterized by elemental analysis, 1H NMR, 13C{H} NMR, 31P{H} NMR and IR spectroscopy, respectively. The molecular structure of 2b has been determined by X-ray single-crystal analysis in which the silver atom is in a distorted tetrahedral geometry and crystallizes as cis–trans. New N-silver(I) acetylbenzamide complexes have a four-membered ring, which could influence their chemical and physical properties and modulate volatility. Metal organic chemical vapor deposition experiments were carried out successfully at 400°C and 450°C using 2e as precursor for the deposition of silver films, respectively. The high-purity silver film obtained at 400°C is dense and homogeneous. Copyright ? 2012 John Wiley & Sons, Ltd.