| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Research Abstract |
New trinuclear metal complexes with unique macrocyclic structures have been obtained by the reaction of trivalent metal sources and modified pentadentate ligands based on 2-(salicylideneamino)phenol. The entire molecular structure of these complexes is regarded as a trigonal-pyramidal geometry with 3-fold rotation axis. In the crystal packing of these complexes, two chiral pairs are loosely aggregated to form capsular conformation with a large cavity (8 x 4 x 4 A).
Two new complexes with capsular conformation including mononuclear octahedral metal complexes have been obtained. Magnetic measurements of these complexes indicate that very weak antiferromagnetic interactions are dominant. To improve the magnetic interactions, more simple terdentate ligands have been prepared. The obtained trinuclear Mn complexes with trigonal-pyramidal structure show strong ferromagnetic interactions. It is suggested the obtained trinuclear complexes can be applied as new magnetic materials.
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