2-巯基吡啶与钴(Ⅱ)、锰(Ⅱ)螯合物的合成及表征

SYNTHESIS AND CHARACTERIZATION OF CHELATES OF 2-MERCAPTOPYRIDINE WITH CO(Ⅱ)-MN(Ⅱ)

以2-巯基吡啶为配体的钴(Ⅱ)、锰(Ⅱ)二种螯合物.经EDTA络合滴定分析、热重分析、红外光谱分析,确认了螯合物的组成与结构.结果表明:配体2-巯基吡啶是以S,N两原子为配体原子,与Mn(II)以2:1、与Co(II)以3:1的配比形成中性螯合物.

In this paper, a new Schiff base derived from 2-Mercaptopridine and its Mn(II),Co(II) complexes are synthesized. The probable structures of these chelates were advised by titration analysis, IR spectra and thermogravimetric. The analysis shows that with different metal ions, the ratio of metal to ligand is different. The ligand (L) is S and N to ligand atom, the L:M of Mn(II) chelates is 2:1,while Co (II) is 3:1.