研究・研究者
研究会・セミナー
| 演 題 | 「HIGH-NUCLEARITY COPPER (II) COMPLEXES」 |
|---|---|
| 日 時 | 2005年07月11日(月) 15:00 |
| 講演者 | Prof. A.R. Chakravarty (Indian Institute of Science) |
| 場 所 | 山手３号館２階セミナー室 |
| 概 要 | Binuclear and high-nuclearity 3d-metal complexes with tunable magnetic properties are of importance as models for new spin systems, in the development of nanometric materials and single molecule magnets with potential applications, and as models for the multimetal active sites of metalloproteins. In addition, such complexes often show a variety of supramolecular interactions, particularly involving hydrogenbonding interactions. The process of “self-assembly” of precursor units gives rise to the formation of super-sized discrete molecular species of nanometric size. We have used mono- and binuclear copper(II) complexes as precursors to synthesize high-nuclearity copper(II) complexes showing novel structural and magnetic properties. Significant results include the isolation of a ferromagnetic cubane cluster with available binding sites to generate tetradecanuclear core, synthesis of octanuclear copper(II) complexes showing host-guest interactions, isolation vanadium(IV) encapsulated dodecanuclear copper(II) core with tunable magnetic properties, and observation of water assemblies of different morphologies stabilized in the supramolecular structures. The general aspects of the chemistry of high-nuclearity copper(II) complexes will be discussed citing representative metal complexes. |
| お問合せ先 | 青野重利 |
