Metal-Catalysed Oxidation Processes in Thiosemicarbazones: New Complexes with the LigandN-{2-([4-N-Ethylthiosemicarbazone]methyl)phenyl}-p-toluenesulfonamide
作者:Rosa Pedrido、María J. Romero、Manuel R. Bermejo、Ana M. González-Noya、Iria García-Lema、Guillermo Zaragoza
DOI:10.1002/chem.200700867
日期:2008.1.7
The coordination behaviour of a new thiosemicarbazone Schiff-base building block, N-2-([4-N-ethylthiosemicarbazone]methyl)phenyl}-p-toluenesulfonamide, H2L1 (1), incorporating a bulky tosyl group, towards Mn II, Fe II, Co II, Ni II, Cu II, Zn II, Cd II, Ag I, Sn II, and Pb II has been investigated by means of an electrochemical preparative procedure. Most metal complexes of L1 have the general formula
一种新的硫半脲席夫碱结构单元,N- 2-([[4-N-乙基硫代半脲酮]甲基)苯基}-对甲苯磺酰胺H2L1(1)的配位基,是对甲苯磺酸锰的配位基,已经通过电化学制备方法研究了Fe II,Co II,Ni II,Cu II,Zn II,Cd II,Ag I,Sn II和Pb II。L1的大多数金属络合物具有通式[M(L1)] 2.nX(M = Mn,Fe,Co,Ni,Cu,Cd,Pb; n = 0-4,X = H2O或CH3CN)通过[Pb(L1)] 2(15)的结构,其中铅上的孤对具有立体化学活性。该铅(II)配合物显示出强烈的荧光发射,量子产率为0.13。对于银,发现形成的配合物具有[Ag2(L1)] 2.3H2O的化学计量。与锰和铜金属发生反应时,已经发现发生了有趣的催化过程,对配体骨架结构产生了显着的后果。在合成锰配合物时,我们获得了出乎意料的二硫代硫代半碳酰胺甲苯磺酰基配体H2L2