134 Towards the Synthesis of Molecular Squares Composed of Bis(phosphine) Platinum Corners and Alkynyl Linkers

Wednesday, November 4, 2009: 4:00 PM
Santa Fe (Camino Real Hotel)
John A. Gladysz, PHD , Chemistry, Texas A, College Station, TX
Jose Eduardo Nunez, PhD , Department of Chemistry, University of Texas at El Paso, El Paso, TX

The development of molecules having specific 2D or 3D architectures, such as squares, hexagons, and boxes, has attracted much attention. Cationinc species in which the metal corners are linked by N-donor ligands, such as 4,4'-bipyridyl or 4- ethynylpyridines, have been extensively studied, however, there is current interest in the development of neutral square and triangular species composed of polyyne chains as the edges connecting the metallic corners. In this project, we attempt to synthesize neutral molecular squares based on platinum corners connected by 1,3-diyne-1,4-diyl (C4) ligands, such as complex 1, from cis- precursors 2 and 3.