New Tetrachlorocyclodiphosph(V)azane Complexes of Co(II), Ni(II), and Cu(II): Preparation, Characterization, Solid State Electrical Conductivity, and Biological Activity Studies
作者:Abdel-Nasser M. A. Alaghaz、Salwa A. H. Elbohy
DOI:10.1080/10426500701839858
日期:2008.7.4
complexes are found to have the general formula [(MX2)2(H2L)(H2O) m ]. nH2O where M = Co(II) (X = SCN, n = 2, m = 0), Ni(II) (X = Cl, n = 4, m = 4), and Cu(II) (X = Cl, n = 2, m = 0). The complexes have been investigated in solution by the spectrophotometric molar ratio and conductometric methods. IR spectra show that the ligand is coordinated to the metal ions in a bidentate manner with NN donor sites of
很明显,这种趋势取决于离子半径的减小和金属配合物稳定性的增加。计算出的载流子迁移率范围为 10-5 到 10-9 cm2/V s,表明所研究的复合物的传导是通过跳跃机制发生的。获得的固态电导率表明金属配合物表现为半导体材料。粉末 XRD 研究证实了复合物的无定形性质。根据元素分析数据,建议采用 1:2 (H2L: M) 比率,发现配合物具有通式 [(MX2)2(H2L)(H2O) m ]。nH2O 其中 M = Co(II) (X = SCN, n = 2, m = 0), Ni(II) (X = Cl, n = 4, m = 4), and Cu(II) (X = Cl, n = 2,m = 0)。通过分光光度法摩尔比和电导法研究了溶液中的配合物。IR 光谱表明,配体与亚胺 NH 和噻唑 N 的 NN 供体位点以双齿方式配位。 UV-Vis、固体反射率和磁矩数据表明配体与金属离子配位。八