X-Ray and Spectroscopy Studies of Antisymbiotic Effect O-Coordination of the 4-Methoxy Benzoyl Methylene Triphenyl Phosphorane Ligand in Palladium(II) Complex

Abstract

Complex [Pd(C<inf>6</inf>H<inf>4</inf>CH<inf>2</inf>NH<inf>2</inf>-k2-C,N)(Py)(OC (MeO-4-C<inf>6</inf>H<inf>4</inf>){double bond, long}CH-PPh<inf>3</inf>)]OTf (1) (OTf = CF3SO3) represents the example of an ylide O-bound to a Pd(II) center that is unusual for the classical soft metals. O-coordination of ylides and cisoid structure of complex was demonstrated by single-crystal X-ray analyses and spectroscopy. The IR and NMR data of the product (1), formed by the reaction of Pd(II) with the same ylide, are similar to those of O-bounded ylide. Analytical data indicate a 1:1 stoichiometry between the ylide and Pd (II) in the product (1). The molar conductivity of (1) Λ = 175 Ω-1 mol-1 cm2 is within the range for 1:1electrolytes. © 2008 Elsevier B.V. All rights reserved.