| Project/Area Number |
14350453
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
工業物理化学
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| Research Institution | Gifu University |
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Principal Investigator |
KAWAMURA Takashi Gifu University, Faculty of Engineering, Professor, 工学部, 教授 (40026125)
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| Co-Investigator(Kenkyū-buntansha) |
EBIHARA Masahiro Gifu University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (80201961)
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| Project Period (FY) |
2002 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥14,400,000 (Direct Cost: ¥14,400,000)
Fiscal Year 2003: ¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2002: ¥10,800,000 (Direct Cost: ¥10,800,000)
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| Keywords | rhodium / dinuclear complexes / mixed oxidation state / electrical conductivities / ruthenium / tetrathiafulvalene / electron configuration / δ-π interaction / コバルト / δπ相互作用 / 結晶構造 / 伝導性 |
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| Research Abstract |
This project explored novel transition metal cluster complexes with moderate to high electrical conductivities based on δ-π interaction in paddlewheel-type dinuclear complexes. (1)We prepared dirhodium complexes with tetrathiafulalenyldiphenylphosphine as axial ligands and also those with tetrathiafulvalenylcarboxylate bridging ligands. In their crystals, intermolecular π-stack of TTF moieties has been observed. Their electrochemical behaviors showed that intermolecular TTF-TTF electronic interaction is not very strong. (2)Crystal structures of diruthenium complexes with 2-aminothiazolate bridging ligand showed that the RuRu δ^* orbital is located above the RuRu πorbital in energy due to δ-π interaction and the stronp donating nature of the bridging ligand. (3) A mixed oxidation-state complex having a diamondoid extended structure has been prepared from dirhodium tetraacetamidate, its cation radical and ssodium iodide. It is a semiconductor and its electrical conductivity oscillates over a order of 10^5 upon dehydration-rehydration cycles of its hydration water molecules. (4) The crystal of the cationic radical salt of a dirhodium complex with 4-phenanthridinolate bridging ligand has been shown to, a semiconductor. (5) A series of Co-Rh mixed mixed-element trinuclear complexes has been studied. The metal-metal interaction in this series of complexes has been shown to have a trend that heavier metal has stronger M-M interaction.
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