Synthesis and Magnetic Property Study of Transition Metal or Mixed Transition Metal Clusters

• Main Authors: Lin, Kuan-Yu, 林冠羽
• Other Authors: Yang, En-Che
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/31176091573747679814

碩士 === 輔仁大學 === 化學系 === 102 === We had successfully synthesized a new organic ligand 6-hydroxymethyl-pyridine-2-carbaldehyde-oxime ( H2hpco ), and to create new manganese metal cluster [Mn2(hpco)2(dmf)Cl2]2 (1), and the structure properties were discussed. On the other hand, synthesis of 3d-4f trinuclear mixed-metal complexes [MnLn2] (Ln = Dy, Gd ) with using known N-(2-Pyridylmethyl)imino diethanol( H2pmide ) lignad, but results isn’t expected. Therefore we replaced metal Ln to transition metal Cu, and synthesized a new trinuclear compound [MnCu2(pmideH)2(OAc)4]‧3CH3OH (2), and the structure were discussed. We also use the orgnaic lignad 2,3,5,6-tetrakis(2-pyridinyl)pyrazine( tppz )、2,6-bis(hydroxymethyl)-4-Methylphenol(L) to create new one dimensional chain dinuclear coordinate polymer{[Co2(tppz)(DMF)2(Cl)2](ClO4)2‧1DMF}n (3) as well as the synthesis of new mixed transition metal compounds [MnIII12CaII7(HL)12(µ4-O)8(µ3-Cl)6(µ3-MeO)2(MeOH)6](MeO)2 (4), and the structure properties and magneticmeasurement are discussed. Compound (3) was antiferromagnetic coupling in the dc magnetic susceptibility. The ac magnetic susceptibility measurements of the compound (3) didn’t show anyout-of-phase signals, which was not a single molecule magnet.Compound (3) contains the coordinated ligand or free guest solvent molecules to form the one-dimensional channel.Compounds (4) which was ferromagnetic coupling in the dc magnetic field measurement susceptibility.The ac magnetic susceptibility measurements of the compound(4) didn’t show any out-of-phase signals,which was not a single molecule magnet.