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Synthesis, characterization and biological activity of some platinum(II) complexes with Schiff bases derived from salicylaldehyde, 2-furaldehyde and phenylenediamine
Faculty
Specific Education
Year:
2007
Type of Publication:
Article
Pages:
114-121
Authors:
Gaballa, Akmal S, Barakat, Atiat S, Teleb, Said M, Asker, Mohsen S
DOI:
10.1016/j.saa.2006.06.031
Journal:
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY PERGAMON-ELSEVIER SCIENCE LTD
Volume:
67
Research Area:
Spectroscopy
ISSN
ISI:000246085800015
Keywords :
salicylaldehyde, 2-furaldehyde, phenylenediamine Schiff base, platinum(II) complexes, IR thermal analysis, UV-vis, biological activity, antimicrobial activity
Abstract:
Four platinum(II) complexes of Schiff bases derived from salicylaldehyde and 2-furaldehyde with o- and p-phenylenediamine were reported and characterized based on their elemental analyses, IR and UV-vis spectroscopy and thermal analyses (TGA). The complexes were found to have the general formula {[}Pt(L)(H2O)(2)]C1(2)-nH(2)O (where n = 0 for complexes 1, 3, 4; n = I for complex 2. The data obtained show that Schiff bases were interacted with Pt(II) ions in the neutral form as a bidentate ligand and the oxygens rather than the nitrogens are the most probable coordination sites. Square planar geometrical structure with two coordinated water molecules were proposed for all complexes The free ligands, and their metal complexes were screened for their antimicrobial activities against the following bacterial species: E. coli, B. subtilis, P. aereuguinosa, S. aureus; fungus A. niger, A. fluves; and the yeasts C albican, S. cervisiea. The activity data show that the platinum(II) complexes are more potent antimicrobials than the parent Schiff base ligands against one or more microorganisms. (c) 2006 Elsevier B.V. All rights reserved.
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