Synthesis and Structure of Mono- and Poly-nuclear Metal-Chain Complexes with the tripyridyl diamine Ligand

• Main Authors: Lee, Hsiao-Ching, 李曉菁
• Other Authors: Peng Shie-Ming
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/64439576590883064722

碩士 === 國立臺灣大學 === 化學系 === 86 === Abstract We are interested in developing a new type of ligands which might bind oligonuclear metal ions. Here we report the properties of metal complexes of N,N'-bis((-pyridyl)-2,6- diaminopyridine (H2tpda) in detail. Two types of metal complexes with different conformations were synthesized by using H2tpda ligand. We obtained different mono- nuclear complexes of FeⅡ，CoⅡ，NiⅡ，CuⅡ and ZnⅡ all in anti form and determined their crystal structure. Linear penta- nuclear complexes in all-syn form were also synthesized successfully. We also could obtain linear tetra- nuclear metal- chain complexes by controlling the ratio of metal ion and ligand. These results were characterized by FAB. In addition, we substituted axial position of linear tri-, penta-nuclear metal- chain complexes by bridged bidentate to obtain one dimensional metalichain polymers. The polymer [Ni3(dpa)4(H3C5O4)]n(BF4) nxplores the possibility of synthesizing the alloy molecule metalwire by bridging the different metal string complexes.