INOR 297 |
| The design of porous solids based on open frameworks of molecules that form channels has witnessed great progress in recent years. A useful method to promote formation of open frameworks is to utilize organic molecules that coordinate to metal ions at several different metal-binding sites. Judicious choice of coordination bonds as secondary building blocks has provided a several new types of framework solids that exhibit high surface area and porosity. Our strategy to fabricate porous solids is to design 3-D coordination polymers composed of very large organic building blocks that have predetermined tetrahedral geometry. We currently are investigating organic functional groups such as pyridine-2,6-dicarboxylic acid, pyridine-2-carboxylic acid and dipyrromethene as metal-binding units. In addition, we are investigating smaller ligands with one nitrogen and one carboxyl group, such as 4-(1H-Imidazol-1-yl)benzoic acid and urocanic acid as possible building blocks for diamond frameworks. Some crystal structures were obtained by X-ray single crystal diffraction. The design, preparation, characterization and properties of these molecules and several framework materials composed of metal ion complexes of these molecules are discussed. |
|
Synthesis and Characterization of Materials
7:00 PM-10:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Inorganic Chemistry |