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Polish Journal of Chemistry

Tytuł artykułu

Novel Coordination Complexes of the Trivalent Ruthenium, Rhodium and Iridium with Hydrazones Derived from Isatin Hydrazide and Various Aldehydes with Spectral and Biological Characterization

Autorzy Sharma, V.  Srivastava, S.  Srivastava, A. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN Aseries of several new ruthenium(III), rhodium(III) and iridium(III) complexes with hydrazones of general formula [M(LH)3]Cl3 were synthesized in order to meet requirements essential for biological properties. Hydrazones were formed by isatin hydrazide and various aldehydes namely anisaldehyde, benzaldehyde, o-chlorobenzaldehyde, p-chlorobenzaldehyde and p-fluorobenzaldehyde. Physicochemical characterization of compounds has been carried out by elemental analyses, spectroscopic (IR, electronic, 1H NMR), thermogravimetric and magnetic studies. These complexes show higher conductance values, supporting their electrolytic nature. All the studies revealed octahedral nature of the complexes with nitrogen and oxygen of azomethine and carbonyl group as binding sites and exhibited monomeric nature of the complexes. Rhodium(III) and iridium( III) complexes were found diamagnetic and show intense absorptions while ruthenium( III) complexes show paramagnetic behaviour. In addition, antifungal and antibacterial studies have been carried out in vitro for investigated compounds against fungus A. niger and F. oxysporium and bacteria E. coli and S. aureus. Most of the metal chelates show higher biocidal activity for the above microorganisms than that of the free ligand.
Słowa kluczowe
EN hydrazone complexes   spectral   TGA and biocidal  
Wydawca Polskie Towarzystwo Chemiczne
Czasopismo Polish Journal of Chemistry
Rocznik 2006
Tom Vol. 80, nr 3
Strony 387--396
Opis fizyczny Bibliogr. 32 poz.
autor Sharma, V.
autor Srivastava, S.
autor Srivastava, A.
  • Department of Chemistry, University of Lucknow, Lucknow - 226007, India
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