Synthesis, structure, and magnetic properties of metal complexes with polydentate ligands

• Main Authors: Chun Yuan Liao, 廖俊源
• Other Authors: Ho Hsiang Wei
• Format: Others
• Language: zh-TW
• Published: 2001
• Online Access: http://ndltd.ncl.edu.tw/handle/56626762152878187953

碩士 === 淡江大學 === 化學學系 === 89 === In the present thesis, we prepared eleven new 3d metal complexes with polydentate ligands L1~L3 and bridging ligand (N3-,N(CN)2-).The molecular structure of these complexes have been determined by single-crystal X-ray diffraction method : ( 1 ) [ Cu( L1 )(N3)2 ] ( 2 ) [ Cu( L3 )(dca)( H2O) ] ( 3 ) [ Mn( L3 )2 ](ClO4)2 ( 4 ) [ Cu2( L2 )2Cl2 ]Cl2 ( 5 ) [ Co2( L2 )2Cl2 ]Cl2 ( 6 ) [ Ni2( L2 )2(μ-1,3-N3)2 ](ClO4)2．8CH3OH ( 7 ) [ Ni2( L3 )2(μ-1,1-N3)2 ] ( 8 ) [ Cu2( L3 )2(μ-1,1-N3)2 ]．[Cu( L3)(N3) (H2O)]．3 H2O ( 9 ) [ Cu( L3 )(μ-1,5-dca)(NO3)]n (10) [ Co(μ-1,5-dca)2(CH3OH)2]n (11) [ Mn4( L2)2(μ-1,1-N3)4(μ-1,3-N3)3(N3)2]n ( L1 = 2,3-Bis(2-pyridyl)pyrazine, L3 = 2,6-Bis(2-pyridyl)-4(1H)-pyridone L2 =2,6-Dimethyl-2,3-bis(2-pyridyl)quinoxaline ) The complexes (1)~(3) are mononuclear complexes, (4)~(7) are dinuclear complexes, (8) is trinuclear complex, (9) is 1-Dimensional chain complex while (10) and (11) are 2-Dimension complexes. In addition to the single-crytal X-ray study, the complexes have been characterized by elemental analysis, IR spectra. Variable-temperature ( 2~300K ) magnetic susceptibility were measured to understand the magnetic behavior of these complexes.