Synthesis, spectroscopic and thermal studies of transition metal complexes derived from benzil and diethylenetriamine
作者:Sadaf Khan、Shahab A.A. Nami、K.S. Siddiqi
DOI:10.1016/j.saa.2006.11.026
日期:2007.10
by cyclocondensation of benzil with diethylenetriamine which efficiently encapsulates transition as well as pseudo-transition metal ions leading to the formation of M(bdta)Cl2 type complexes [where M=Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II)]. The analytical, spectroscopic and magnetic moment data suggests an octahedral geometry for all the complexes. EPR spectra of Mn(II) and
Synthesis and characterization of some novel macrocyclic NiII complexes
作者:Najlaa S. Al-Radadi、Sawsan M. Al-Ashqar、Mohsen M. Mostafa
DOI:10.1007/s10847-010-9826-0
日期:2011.2
NH groups, respectively. The values of magnetic for all Ni2+ complexes suggest the existence of octahedral geometry around the NiII ion in the monomeric or in the dimeric forms. In all cases the ligandsform five-member rings around the NiII ions. Also, the results of electronic spectra suggest an octahedral geometry around the NiII ion. Moreover, the results of thermal studies indicate the mechanism