Multidentate organosilicon- and carbon-based β-diketones and their supramolecular metal complexes

INOR 162

Chandi Pariya, pariya@lsu.edu1, Ralph Isovitsch, risovits@xula.edu2, Christopher R. Sparrow, csparr1@lsu.edu1, Yoseph S. Marcos, ymarco1@lsu.edu1, Frank R. Fronczek1, and Andrew W. Maverick, maverick@lsu.edu1. (1) Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, (2) Department of Chemistry, Xavier University of Louisiana, 1 Drexel Drive, New Orleans, LA 70125
We have prepared bis-, tris-, and tetrakis(β-diketones) for the synthesis of nanoscale porous molecules and solids by reaction with metal ions. m-Phenylenebis(acetylacetone), H2L1, reacts with Cu2+ to make the cyclic tetranuclear complex Cu4(L1)4 (Cu---Cu 14.3 Å), rather than the expected hexanuclear species. Silicon halides and tetraphenylmethane are used to prepare di-, tri-, and tetraaldehydes, which can be converted into the corresponding β-diketones H2L2...H4L5 in high yield. These new ligands react with metal ions such as Cu2+ and Fe3+. For example, H2L2 and H4L4 react with Cu2+ to make Cun(L2)n and Cu2n(L4)n, as expected for cyclic and network-solid products respectively. Structural and guest-binding studies with these species will be discussed.

 

Nanoscience: Synthesis
7:00 PM-9:00 PM, Sunday, 13 March 2005 Convention Center -- Hall D, Poster

Division of Inorganic Chemistry

The 229th ACS National Meeting, in San Diego, CA, March 13-17, 2005