13 research outputs found
Synthesis, structure and reactivity of zirconium(IV), vanadium(IV), cobalt(II), nickel(II) and copper(II) complexes derived from carbohydrazide schiff base ligands
415-420A series of
polydentate schiff base ligands have been prepared by the condensation of
carbohydrazide, H2N-NH-CONH-NH2, with various aldehydes
and the isolated ligands characterized by elemental analysis and spectral
methods. In order to investigate the coordination behaviour of these ligands,
metal complexes of the type M(acac)x L[M = Zr(IV), VO(IV), Co(II),
Ni(II) and Cu(II); L = Schiff base ligands; x = 0 or 2] have been prepared from
the reaction of these ligands with their corresponding metal acetylacetonates.
On the basis of analytical and spectral data, square antiprism, square pyramid
and square planar structures have been proposed. The biological activities of
all isolated ligands and their metal complexes have been studied by screening
the compounds against organisms such as E. coli, S. aureus, A. niger and
C. albicans and the results have been compared