INOR 41 |
| The synthesis of new hybrid organic-inorganic materials continues to be an important area of research. Many of these materials are prepared under hydrothermal conditions using a metal source such as a carbonate or a hydroxide, and an organic compound such as a carboxylic acid. These processes often induce rearrangements, cleavage, decomposition, among other reactions, which may prevent the formation of a desired complex and/or lead to a completely different material. As part of our attempts to prepare Ba and Ca complexes of itaconic acid (methylenesuccinic acid) via hydrothermal routes, we obtained from the reaction with BaCO3 a mixed-ligand compound, Ba5[(Citraconate)2(2,3-dimethylfumarate)]. When the reaction was carried out with CaCO3, Ca-citramalate was obtained. Solution NMR indicated the presence of residual citraconate, mesaconate, itaconate, 2-(hydroxymethyl)-succinate, and traces of citramalate anions in the solid resulting from the reaction with BaCO3. For the Ca reaction, 2,3-dimethylfumarate and 5-oxotetrahydrofuran-3-carboxylate are also obtained. |
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Synthetic Coordination Chemistry
8:30 AM-12:30 PM, Sunday, August 19, 2007 BCEC -- 213, Oral
Division of Inorganic Chemistry |