Studies on Transition Metal Complexes of S-Triazine Derivatives
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Date
2005-03
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Abstract
In this project two ligands 2,4,6-tris(hydroxylamino)-s-triazine (THASTZ) and 2,4,6-
tris (hydrazino)-s-triazine (THSTZ) were synthesized.
Suspension of THASTZ in methanol and THSTZ in acetonitrile was used to synthesize
metal complexes of VO(II), Ag(I), Cu(I), Cd(II) and Hg(II) They have been
characterized on the basis of analytical, thermal (DSC-TGA), magnetic susceptibility,
conductance, IR, NMR, UV-VIS spectral studies. The conductivity measurement studies
show that the metal complexes are non-electrolytes and the chlorides (no chlorides in
Ag (I) and VO (II) complexes) are coordinated in the inner sphere of the metal
complexes. Except in DMSO both ligands (THASTZ and THSTZ) are insoluble in most
common solvents unless heated. For both ligands (except for Ag (I) complex, which is
3:1 ratio) the metal to ligand ratio in the complexes is 1:1. The data shows that Hg (II)
and Cd (II) complexes form octahedral while VO (II) form distorted octahedral
complexes, where as Ag (I) and Cu (I) show tetrahedral geometry.
All data have confirmed the formation of THASTZ, THSTZ and their corresponding
metal complexes. Antimicrobial activity tests against salmonella typhi and staphlococus
aureus of THASTZ, THSTZ and their corresponding metal complexes have been
investigated. The result shows that 2,4,6-tris (hydrazino)-s-triazine was found inactive
against salmonella typhi; where as 2,4,6-tris (hydroxyl amino)-s-triazine was inactive against both bacteria. Metal complexes of both THSTZ and THASTZ have varied
inhibition activities diameter against both bacteria.
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Metal Complexes