| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
By the use of various organic ligands, new mononuclear, dinuclear, oligonuclear, and polynuclear metal complexes of the first and second transition metals such as copper, nickel, manganese, iron, cobalt, ruthenium, molybdenum, and rhodium were synthesized, and their magnetic properties were investigated to observe the magnetic anisotropy effect. In cobalt systems, polarized neutron diffraction method was applied for dinuclear complex to elucidate the anisotropic effect on the magnetic properties. In nickel systems, heptanuclear nickel complex showed a single-molecule-magnet behavior, while hexanuclear nickel complex showed a ferromagnetic behavior. In dinuclear ruthenium systems containing metal-metal bonding, a ferromagnetic compound with Curie temperature of 50 K was found. Fastener effect on magnetic properties as well as liquid-crystalline property were observed by introduction of long alkyl chains. In one-dimensional chain compounds of rhodium and molybdenum, adsorption properties were examined for nitrogen gas as well as magnetic properties and the correlation with the crystal structures were investigated. Dinuclear lanthanide compounds were also synthesized and the magnetic properties were described by the J quantum numbers,approximately.
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